I've decided to set up a store, with prices that are fairly decent, and also sells most items, I'm looking for ideas on what to sell, and what I should price them at. I am usually willing to negotiate prices in most cases, but within an understandable amount. The items I currently am able to sell at the moment are the following:
All Potions, including splash, lingering, and tipped arrows, as well as their ingredients, also spectral arrows
Dragon's Breath
Bottles O' Enchanting
Concrete/Concrete Powder, Hardened Clay, Terracotta
Bone Blocks
Armor (all variations, can be enchanted)
Agricultural Products: Crops and tools (including Chorus)
Dyes (All types)
Coal Blocks (By the stack)
Paper
Wool, Banners, and carpet (All Colors, and in bulk)
Enchanted Books (May take longer than other orders to obtain)
Wood/Wood Planks/Slabs
Silk Touch Harvestable Blocks (Mycelium, Podzol, Grass,)
Glass, Stained Glass, Sand/Red Sand, Sandstone, Red Sandstone, Gravel
Ores
Redstone Items
Obsidian
Quartz
Bulk Andesite, Diorite, Granite and polished variations
Ice/Packed Ice
Magma Blocks, Nether Wart Blocks, Nether/Red Nether Brick Blocks, Nether Brick Fence, Soul Sand, Blaze Rods/Powder, Nether Wart
End Stone and End Stone Brick, End Rods, Purpur blocks and variations, Ender Pearls (Bulk) Eyes of Ender
Jukeboxes and Music Discs (Limited Stock)
Minecarts and all Rail Variations
Leaf Blocks and Decorative Plants
Paintings and Signs
Snow and Snow Layers
Stairs Blocks
Saddles
Bookcases
Iron Doors and Bars
Vines and Mossy Blocks
Most Foodstuffs (no notch apples, sorry)
Misc. Enchanted Books
Bricks
Normal Clay Blocks
End Crystals
Fire Charges
TNT
Missing Texture Skull (Texture will change depending on time of year)

Coming Soon:
Gunpowder (In Bulk)
Elytras
Prismarine, Dark Prismarine, Sea Lanterns, Sponges (Rental)
Various End City Loot (TBD)

I am not attempting to get into already existing businesses in products listed already, If there are any problems, please message me in game or here. Thank You
This includes most of the items in the game, so I hope I can cater to most player's needs. Message me while I am on, or reply on the forums, I'll get back to you shortly after. I'm also looking to establish prices here for my wares, so also suggest prices as well.

{UPDATE} 6/24/17

I also am selling the banners in the picture below for a modest diamond per banner.

Also I'm going to introduce a customer loyalty program in the future with reward points and such, which I personally will keep track of, which will can be exchanged for goods from a list, which changes once in a while. Customer Rewards Cards can be ordered for One Diamond, and that price is not subject to change. I will be posting the first rewards in the near future, so stay tuned for more

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I also am considering doing sales at times there are IRL, as well as festive goodies at their appropriating times

This store can sell you practically anything you may need,
Thank You in Advance, :D
-AttackTeam

Ill buy all your ghast tears

Where's the stone? Will buy if you set a price for it.

iill preoder some gunpowder

All prices are yet to be determined, as mentioned above. If you have a price to suggest, please do. I'm trying to price items at the cost most players are comfortable with paying, as long as it's reasonable for me as well. Also state quantities of items with the order if possible, so I can see how long It will take me to get the items. Thanks In Advance, -AttackTeam

{UPDATE} 9/18/17

Rewards Cards are now free with your first purchase, any player that has bought a card will have the cost turned into points.

I also am selling novelty goods as well now, as they serve no real purpose other than to be just there, such as enchanted carrots on sticks, binding and/or mending pumpkins/skulls. Banners are now an iron ingot a piece, more to come in the near future.

Also I am announcing a currency exchange service to exchange one the four major currencies into any of the other three currencies, and the ability to redeem shop points for currency as well!

I'm confused... I can trade an iron ingot for a diamond?

The chart isn't accurate, but you can trade any of the four into any of the other three

Sure thing, I'll be on this afternoon/evening

{UPDATE} 10/17/17

I now am stocking the store's shelves with high quality enchanted books, all books sold here are sold either at their second highest level or the highest possible. The second highest level books are not combined from lower levels of the enchantment, ensuring those who are purchasing to work on god items that they will not become too expensive in the process if bought from this source. I however cannot help you if you have bought books from another source, that may have combined books below the second highest level.
All level V books have been combined from only level IV books sourced from villagers or the enchantment table directly

the following books are priced at four diamonds each: Assorted Enchantments

Luck of the Sea II
Lure II
Punch I
Fire Aspect I
Thorns I
Knockback I
Aqua Affinity

The following books are priced at five diamonds each: Second Highest Levels Enchantments

Power IV
Sharpness IV
Bane of Arthropods IV
Smite IV
Efficiency IV
Feather Falling III
Protection III
Blast Protection III
Fire Protection III
Projectile Protection III
Luck of the Sea III
Lure III
Unbreaking II
Respiration II
Depth Strider II
Thorns II

The following books are priced at 6 diamonds each: Maximum Level Enchantments

Silk Touch
Flame
Infinity
Efficiency V
Sharpness V
Power V
Smite V
Bane of Arthropods V
Protection IV
Blast Protection IV
Projectile Projection IV
Fire Projection IV
Thorns III
Depth Strider III
Respiration III
Unbreaking III
Looting III
Fortune III

Treasure Enchantments will be sold soon, but I have no reliable source of them at the moment

Please notify if there's anything that you would like to be added, or forgotten in latter item tiers in the post I forgot to put in again.

I also am selling god sets, weapons, and tools, but they have no set price yet. Also End Crystals are in stock, as well as Shulker Boxes and Elytras, all in limited supply.

Happy Shopping,
-AttackTeam

I would like to buy some end city gear... can you tell me what "end city gear" means? Thanks btw I will also want to buy elytra <3

End city items consist of items found in chests in end cities. I can sell you an elytra, but I have not decided on prices yet.