Is there any way to make one of the pearl necklaces out of fondant without buying a silicone mold?

I would like to make one to put on my niece's bday cake, but just can't see spending $20 on something I may only use once or twice.

Any suggestions are appreciated!

Earlene's website shows you how to make the pearls quickly:
http://www.earlenescakes.com/prlinstruct.htm

Thanks for the link