Most of amazon's debate merch and stickers are trash. Use redbubble for merch and stickers, here is what I would buy on amazon:
Debate related:
Actually nice looking table-tote / lapdesk
THIS WILL SAVE YOUR LIFE AT TOURNAMENTS
These will save your eyes during the late nights spent prepping
Slim wallet to travel light at tournaments
Keeps your shirt collars and pits looking mighty fresh
Other quality purchases:
If you don't own a portable speaker get this one
Something about this really calls me
You can change you tastebuds with this. It makes sour things taste sweet :D
Edit: I think I like this better
[Miracle berry tablets!] for a short amount of time anything you eat or drink will taste sweet. Anything. That can include vinegar, lemon or whatever. Its a pretty cool thing if you have friends over and stuff.(http://www.amazon.com/mberry-Miracle-Fruit-Tablets-10-Count/dp/B001LXYA5Q/ref=sr_1_1?s=grocery&ie=UTF8&qid=1451162213&sr=1-1&keywords=miracle+berry+tablets)