I have just recently been introduced to Scotch Brand Removable Tape. This is the most exciting thing since sliced bread! I absolutely love it and it's perfect for taping the tracing vellum to the SFD Master Patterns.
Tracing Vellum is taped on to the Master Pattern in the upper right corner. (And don't you just love this tracing vellum? It really is so clear,
durable and see-through that it's difficult to take a picture showing
you that it is laying on top.) When I took the display down, the tape pulled off like magic - no rips or tears. I know they can't call it magic tape, since that name is already used for another product. But it certainly works well for our SFD purposes. You should be able to purchase this Removable Tape in most office supply stores.