i was tired of sore fingers and thumbs loading my BDM full size .22 magazines, so i made my own thumb loader, modified out of a pistol mag loader. not pretty, but works quite well.

more pics and details (username and password are both 'mm' to view full size pics):http://www.militarymorons.com/weapons/access.html#bdm

short video demo:
http://www.youtube.com/watch?v=WT38nT459GI