What size HST do you need?
I use a large sheet of copy paper and draw them out including a dashed line for stitching. Take to a copy center and make copies as they have large sheets. This is similar to triangles-on paper just uses a big piece of copy paper.
Layer the two fabrics right side together. I cut them about 1/2 larger than the paper pattern.
After stitching on each side of line then cut the "cutting lines". Square them after cutting and tear off paper.
One of my quilt designs needed a 136 HST and this made lots at a time.
I have also used these with success too.
http://www.thangles.com/howtheywork.html
Good luck!