When I was a kid in the 70's we had this soap/candle maker I loved. You plugged it in and dropped in the wax or soap and it dripped into one of many rubber molds. You could make small animals, flowers... I am desperate to find one but cannot find the name. I'm not sure if it was made to be a soap or candle or even crayone maker. Please let me know if you have any ideas.

You should be able to check with any arts and crafts stores like JoAnns or Michaels
I don't know what shapes you want so here are some sites you can check through.

rubber molds for candles - Google Search

candle making - Google Search

http://www.angelfire.com/ca/SSaSSSy/candle.html

Sounds like Vacuform. Can't swear to that spelling.

It was called thingmaker or vacuform made by Mattel