Former 3D Realms audio guru Lee Jackson is holding an eBay auction for the audio cards from the system he used to compose Grabbag, the Duke Nukem theme song from Duke Nukem 3D. Word is: "Each card comes with its original box. I have autographed and dated both boxes, and have also autographed the manual for the CardD Plus. I even found enough blank circuit board space to place an autograph directly onto the I/O CardD add-on card itself. As an added bonus, I will include a Certificate of Authenticity with the cards stating that I did in fact use these very cards to record digital audio versions of 'Grabbag'." The proceeds of the auction are to help him create a proper modern audio system to return to music composition, though 10% of the take is being set aside as a charitable contribution for Drum Corps International.