(There's no video for 3D Control Panel Icons yet. Please contribute to MR and add a video now!)
This package contains fourty-one 3D control panel icons. Most of the icons are based upon Apple's Mac OS 7.5.5 icons, while others are original. These are freeware.
(55.7 KiB / 57.04 KB)
3D Control Panels Icons v1.4 / compressed w/ Stuffit
Those are classic Mac OS icons.
Emulating this? It could probably run under: SheepShaver