When I do chocolate transfers I don't use a tip. I just cut a very very small opening off of the bag. That way it doesn't come out too thick. HTH
Another option would be to use a parchment triangles:
(Includes how-to-make)
http://forum.cakecentral.com/cake-decorating-ftopict-100411-.html
Thread on Color-flow and CT's:
http://forum.cakecentral.com/cake-decorating-ftopicp-878171-.html
HTH
Yes, parchment triangles is what I use. I make them really tight and you can snip as little off as you want. YOu can do very fine details with it this way. It does tend to harden up in the end, but since there is no tip you can try to squeeze out hte clog or pop it in the microwave for a few seconds. It can be frustrating, but the best way I have found.
If you are using candy melts, try thinning them with Crisco. It is easier to get a thin line if the candy melts aren't to thick.
thoght this was interesting
Lindakbh
experiment did one on parchment paper and one on the shiny side of freezer paper
http://www.cakecentral.com/cake-decorating-ftopicp-1856471.html#1856471
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