The Green Stuff, it compels you!Okay, I usually don't pimp my own blog when commenting, but I have some articles on sculpting that might be of benefit to you. Check here for the first: http://40kmaunderings.blogspot.com/2009/07/sculpting-101-tools.htmlWooden toothpicks are going to be an absolute nightmare to work GS with. They're naturally porous and rough, so the GS is going to stick to them and/or pick up texture from their surface. Smooth metal or silicone tools are the way to go. Lacking a sculpting tool, I'd suggest using a hobby knife and sewing needles or pins.
Thanks for the tip! I've visited your blog, and I liked it :)