Now here is an inventive guy, who took a sewing machine and turned it into a scroll saw! So technically Mom could turn it into a scroll saw if she didn't want to sew with it any more...it would be a great gift for Dad! You know he needs another tool.
I really love this website, http://www.instructables.com/ it's full of interesting recycling/repurposing ideas.
The author of this post, bongodrummer, has his own website here: http://www.floweringelbow.co.uk/
He lives in the UK and seems to be into woodworking and electronics stuff. ("Stuff" being an official technical term I like to use.) It looks like he even took a bunch of "junk" (his technical term) and turned it into a lathe!