1. Are you aware of copyright & intellectual property right laws with selling fan-art & anime merchandise created by you?
If So? Proceed.
If not, go read up on how technically
selling fan art IS illegal. Most people in the convention scene have the attitude of 'it's only illegal if you get caught" or "___ company doesn't really care" However you must remain full aware that if they suddenly do care, and you're who they catch; You're in trouble and no amount of law is going to save you from infringing on selling someone else's intellectual property for money/profit..
2. Always carry the max amount you can carry. Especially when starting out. Nothing is worse than tables who sell out on the first day, or tables who have barely anything left to look at. You should surely have over 100 of each to say the least. Especially for major cons. For minor ones you can get away with 30-50.
3. As for some sources as to where to buy acrylic and sticker merch:
http://www.inkitlabs.com/#!acrylic-products/vstc2=white
http://stickerobot.com/
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