My 6YO boy got one of these for Christmas:
http://www.crickett.com/product_info.php?products_id=248&osCsid=a9n9c49160p9h7kdbg149sg2o1Stock is a bit long, so I ordered another I am going to cut down and remount the (reduced size) buttplate.
I also ordered a .22LR bullet trap. Combine that with a 4'x4' plywood backstop and Aguila Super Colibri .22longs(0), and we are going to have a garage firing range(1).
When we go to gun shows and stores, my daughter points out every single pink gun. Will get her one next Christmas, most likely.
http://www.crickett.com/product_info.php?products_id=243&osCsid=a9n9c49160p9h7kdbg149sg2o1
FTR, it is easier to get one of these than a kid-sized airsoft or pellet gun for the littler kids. We got him a BB gun a while back, but nobody sells BB gun traps for steel BBs. I recently figured out how to make one with 1x4 framing and duct seal, but we already are rolling with the above Cricketts, which have a proper aperture sight. Aguila Super Colibri FTW!
My wife (at 5' nuthin') also likes the feel of the Crickett. I tried to sway her with a Ruger10/22 with an 18" bbl, but she prefers the Crickett. Might have to get her one, too, as they have adult-sized stocks available. Cut to fit and run with it.
(0) Primer only, no powder, 20grains, ~500fps, sound like a relatively wimpy air rifle.
(1) Box fan set up near shooter directing air out the side door. When it gets hot,
two box fans, one blowing across the shooter toward the side door.