I've had many friends tell me about the Sewline glue pen for a while, but I stubbornly kept hand basting my hexies. I finally caved and gave it a try. Ummmmm, I feel really stupid I didn't do this sooner! While I use the Sewline pen, others have said Elmers and other cheaper options are out there. Personally, I like the small pen shape of the Sewline and I know it's safe for my fabric, but feel free to experiment. No one is paying me to promote a certain brand, I'm just sharing my experience. Here's a quick little video of how it works!
I'm currently making two hexie projects, but the one I'm most excited about are these large (2" per side) hexies that take a charm size square to make. I'm using almost every print Anna Maria Horner has ever produced! I've almost finished with the hexie part--last count was 260!--but now I have to start on the tedious triangle making. Boo for boring!