Bighead Electronics is selling a limited edition pre-modded C64, the Bent64 (eBay).
The system comes completely loaded Paul Slocum’s Cynthcart, a custom program which helps the heavily modded Commodore produce a wild cacophony of retro noise as you press keys on the keyboard.
It’s still fully functional as a standard C64, too, with the flip of a switch before you boot up.
via TechnaBob