I've used Sandisk Cruzers, and Lexars without issue. I've also used others that I don't have the make/models of without problem. Actually, I've only tried using one that didn't work.
Lexar Jumpdrive works fine. I've used many flash drives and still haven't found one that doesn't fit. I guess only the super cheap big plastic boxy ones won't work...any "modern" flash drive should be small enough to fit in there.