2 iPac2 USB/PS2 (includes USB adaptor cable). Older, but they work fine - I just finally upgraded to a single iPac4, so I can let these go. $30 each.
3" Imperial Trackball. Has seen field use, but is in working condition. Encoders work, comes with a spare set of bearings/rollers. Only notable problem is that the bottom case is cracked, but it doesn't seem to affect gameplay, unless if you plan on slamming it in Golden Tee. H. Betti sells replacement case bottoms (IMP 47-4305-04) for $2, if you find it to be a problem. But as a standard Windows Pointing Device it works fine. (Needs a mouse hack, though.) Not compatible with the no-bolts-showing mounting plates, but the 8 bolt style plate that Bob Roberts sells should work fine. (The holes aren't big enough for the Happs studs. Eh.) $30.
Older style Ultimarc T-Stik. Black. $10.
Older Style Ultimarc J-Stick. Oval top. Black. Slight wear. $10.