Pin weaving- the perfect business card holder

Spent a very hot afternoon using scraps of wool to weave up a design for my business cards. The first one shrunk more than expected but the second one was perfect. I think you need to allow mor than 10 % shrinkage as the project gets bigger. I also changed the weft to a crochet cotton and this stopped the wool from getting stuck when combing it up for a tighter weaver.