Hi, I'vve just used Sugru to make a cool candle. A friend has a 3D printer, and I made a small model.
I then coated it in washing up liquid (to stop Sugru sticking to it) and covered it in Sugru to build a mould. A very small model took three 5g packs. Then I left it for a couple of days, and peeled the set Sugru off it. It tore a bit.
I melted a candle and took the wick out. I used one of the tears in the mould as the place for the wick to emerge and pushed it all back together bound with electrical tape. I then poured the molten candle wax into the mould. A lot leaked out and I thought it had failed but a couple of days later I took the tape off and pulled the mould apart and I had a pretty decent candle.
If I did it again I'd put the wick in and use Sugru to repair the tears rather than masking tape.
This opens up a lot of possibilities. You don't have to use a 3D printer you can make a candle from anything small enough to be wrapped in Sugru. If I was really ambitious I'd make a wax model, without the wick and use it for lost wax casting to make a glass or bronze model.
I might even try chocolate instead of wax.
Very cool - pics would be a plus! A word of warning about chocolate molding, though: sugru is not classified as a food safe, and is not approved for direct food contact. As I understand it, they are working on this, but in the mean time, I'd stick with silicone products that are already considered food safe.
I'm sorry what I made was for a bit of freelance writing I was doing. I can't really post pictures of it. Thank you for the chocolate warning.