Back in June 2008 I was commissioned to illustrate a First Day Cover for the Carry On and Hammer Horror theme of British stamps. The stamp issue was available for collectors from Phil Stamp Covers, - a company run by Steve Oliver. Steve's cousin was fellow Buster artist/writer the marvellous Jack Oliver (J Edward Oliver), who contributed First Day Covers himself until his untimely death. As I was one of several guest artists, the commission was a one-off but it was a fascinating and enjoyable job to draw. I supplied the black and white art and Steve Oliver coloured it.
I'm not sure if the company is still running as its website seems to be deleted but you can see some of the other artwork at this site, which shows some pieces that Jack Oliver drew: