Fireball is a medium brom (in frogger terms), and can be green to red depending on light. I think there is a post similar to this, but here are some small ones you may want to check out: Neo. Pepper. Neo. Midget, Neo. Liliputiana, Neo. ampullacea, and Vriesea racinae. Alex at Custom Ecos has most of these, and he could probably help you find some other options as well.
link to Custom Ecos brom page:
http://www.angelfire.com/oh3/customecos/bromeliads.htm
Also, you should contact Harry (cloud jungle) and Ken (peace of the tropics) and see what they have. I also think Tropifolra has some neat smaller broms... but I haven't seen those plants in person so am not sure how small they really are.
link to Custom Ecos brom page:
http://www.angelfire.com/oh3/customecos/bromeliads.htm
Also, you should contact Harry (cloud jungle) and Ken (peace of the tropics) and see what they have. I also think Tropifolra has some neat smaller broms... but I haven't seen those plants in person so am not sure how small they really are.