Sippy Cup Recommendations

Am
I've been trying to get my son to use a sippy cup. He's interested in them but I think more to play with, as he likes to pick it up, shake it around, and sometimes throw.  He won't really attempt to drink out of them.  
We've tried Nuby and Dr. Brown's (he has Dr. Brown's bottles). 
Any recommendations on types of sippy cups your LO liked??
Thanks in advanced!