The ones I have left that are *primarily* just for fun would include....
IMI Timberwolf .357 mag pump rifle
Savage Mako .17 HMR
Swiss K31 7.5x55 (and a few other milsurp collectible types, but the K31 is a shooter)
RWS 350 .177 pellet
Browning Buckmark, .22lr
AR15 (M4 style) dedicated to the .22lr conversion kit, with a NCStar scope & laser - hootenanny!
NEF Survivor in .45 Colt / .410 shotshell
M6 Scout in .22lr / .410 shotshell
Springfield V16 longslide, .45 super & .45 acp
Dan Wesson 15 with multiple barrels, .357 mag
Hmmm, no longer have the Izmash Drodz Beehive, but that was the definition of a pure fun gun - full auto BB gun. Also sold the Judge and the MechTech carbine in 10mm - those were mostly just fun guns.