i am soliciting ideas for doing weld lines. I have seen the soldering iron approach and it looks good, but a bit risky to an unsteady hand, i have tried roughing plastic with a dremel burr on low to medium speeds, and get mixed results depending on the type of plastic being used. Some of the small scale guys (no offense intended) have used melted sprue. i have considered using the goo used on decorating tee shirts and women's clothing. Any other ideas, preferences experiences/ I do not know if this subject has been included in the RC tank facts section but it seems like a good subject.

input guys!!