need hot melt glue in colours.
Perhaps you could use powdered charcoal as the pigment.
In the past I have made black epoxy, by mixing the usual clear two-component epoxy with powdered charcoal.
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didn't you already ask this yesterday?
I did ask this question in another way... didn't see it on the questions list so I asked it again. I am a new member. My apologies!
Here is something I found by doing a search but don't know if it is for general retail; I will call them soon: http://www.made-in-china.com/showroom/yujiagluestick/product-detailXMSQDLmBhGYN/China-Hot-Melt-Glue-Stick.htmland others: http://www.shopwiki.com/hot+glue+sticksI just ordered mine from here: http://www.blujay.com/?page=ad&cat=10120000&adid=3036618
Here is something I found by doing a search but don't know if it is for general retail; I will call them soon: http://www.made-in-china.com/showroom/yujiagluestick/product-detailXMSQDLmBhGYN/China-Hot-Melt-Glue-Stick.html
Another solution would be to consider something other than hot glue. House caulking is available in white, black, clear, and red... and quite possibly other colors. And some versions are paintable. Not the same thing by a long shot, but might do what you need.
Use double-sided tape.
Just buy it in black: http://www.amazon.com/Parts-Express-Black-Glue-Stick/dp/B0002ZPW2OAlso, hot glue has a lubricant added in the sticks. When you melt it for the first time it looses most of that lubricant. You won't be able to melt, add pigment, and re-melt with much luck (even if you could mold it back in to sticks).
This is pretty much your only choice, to buy pigmented hot glue.
I know hot melt comes in various colours, but I'm not even sure where to start with what to pigment it with. Worth a try if you have one of those hot-melt-glue-dip heaters and some thoughts on a material.