Dretay made a 3D-printed Bus Blaster v4 case:
A basic enclosure for the Dangerous Prototypes Bus Blaster v4. The enclosure needs to be the full height of the programmer due to the jumpers. In the future I may trim down the jumpers on my board and use a thinner case that exposes more of the JTAG header. I’ve included the 123Design source file in case you’d like to modify it further.