For free, you just pay postage.
Quickshot Aviator joystick, works. Did originally have two connection leads, one for each port, but one of the leads has been cut off.
Gravis Moustick, should be able to be used as a mouse, but I couldn't get it working. Works as a normal joystick though.
Hama Genlock S-590, apparently it doesn't work, have spent much time messing with it. Missing case for the RGB connector.
Scanner from Cameron, for Amiga 500, 1000 and 2000. Text recognition software and paint program included. Untestet.
ISDN Master zorro kort, untestet.
See pictures of the lot here
http://www.doctorq.info/hardwareforfree.jpg
