"Bears and worms aren't very similar, until you think....gummy." -Demetri Martin, These Are Jokes
Yeah, but bears and worms are SO 1922...and 1981.
So, instead, make your own. SFHandyMan has provided a great detailed instructable on creating your own candies out of a DIY silicon mold. He's chosen Legos as his design, and its remarkable how finely sculpted the results are. The details are more defined than in commercial candies!