modster

From mod +‎ -ster.

modster (plural modsters)

1. A member of the mod subculture which emerged in Great Britain in the 1960s; a mod.
   • 2006, Chris Smith, The Rise of Album Rock, 1967–1973 (The Greenwood Encyclopedia of Rock History; 3), Westport, CT: Greenwood Press, →ISBN, page 60:

     In his early career, however, he was relatively tame, listening to jazz and establishing himself as a minor folk singer and modster in early 1960s England.

2. A person who makes modifications to mass-manufactured objects; a modder.
   • 2000 August 13, Rick W 999, “Re: DX 390”, in rec.radio.shortwave‎ (Usenet):

     That a bit too much to ask of me for I am not knowledgable in electronics enough to undertake such a project. Besides, I don't own a 390 or 392. There is a mod for the DX398/909 that speeds up the AGC. The modster's name is Ingo. Ingo are you listening and do you own a DX390?

• Edstrom, stormed