hobby lobby had a small Yak at one point, but i think it got discontinued. the links below are for some home made mini/micro 3D planes, and for the Micro Fatty plane.
there's not a lot in this sector of the hobby, but its getting there. with some 2.5 gram servos, lightweight RX, lipo, and one of the smaller BL motors that are out now,
you can get a pretty small functioning 3D bird.

24" http://www.rcgroups.com/forums/showthread.php?t=290997
24" http://www.rcgroups.com/forums/showthread.php?t=818760
25" http://www.rcgroups.com/forums/showthread.php?t=272582
21" http://www.rcgroups.com/forums/showt...06#post8159506
7" http://www.rcgroups.com/forums/attac...mentid=1518231
http://e-foamies.com/store/catalog/index.php?cPath=22
http://www.metacafe.com/watch/106561...t_3d_rc_model/

nick