Acrylic templates for common pillow and fabric sizes. I made this as I tend to make the same size pillow, and a clear template lets me adjust the positioning over a patterned piece of fabric. Every piece is laser engraved with the inner and outer dimensions of the template.
2.5" width for gussets and piping, markings at 1.75"
4" width for gussets and piping, markings at 2"w and 7.5"l
The 4 x 15 template is designed for the sides of a gusseted pillow, and has engraved markings at halfway measurements to easily adjust the piece you're cutting if you don't need as large of a piece.
The 2.5 x 12 piece is designed for quick marking for piping as well as gussets. I commonly use a 1.75" width of fabric for my piping, so I've engraved a mark at that dimension for ease of measurement.