Seeing as they almost never even hit the field, I'm thinking there must be some uses for them. Here's some (and feel free to add more):
Eddie's Top 10 Uses for the 10 Point Balls
10)
Well, you could actually try scoring with them. 
9)
Maybe you want to relive FIRST's 10th anniversary (after all, they both had yellow 10 point balls. and/or it does say "10" on it)
8)
To show you're from St. Louis Park, Minnesota (bonus points if you get this reference)
7)
Christmas ornaments
6)
I suppose they can hold your dinner or drinks on a long build night
5)
A non-functional decoration (hey, it's legal)
4)
Combine them with duct tape and make it into a carrying case for your tools
3)
Life-size game of Pong (although IMO, the 10 point balls from 2001 were much better for that)
2)
Using them to show your appreciation for a Top 10 List
1)
Cut them in half and use them as a BUZZ smilie face
This has been an official "Eddie's Top 10 List". The Top 10 List is an official property of and sponsered by The Holy order of FIRSTism, and my not be copied, reproduced, or retransmitted in way without the expressed written consent of The Holy Order of FIRSTism.