Since he didnt answer imma answer how long it usually takes me to do cardboard projects Since this project is relatively small comparing to others id say Drawing and cutting claws would have taken him around 30 minutes or a little more Assuming no breaks are taken in between Hot gluing/gluing, seperating the claw into 2 parts and stuff , like about 40 minutes or more The entire project in theory could be done in a day or 2 max if you take breaks Talking from experience i usualy take pretty long to make things cuz i take long breaks in between Hope that helps Edit: Ps:also jou could super glue the cardboard blades and sand them down to make edges then filling the small holes with some paper mache or something , than sanding down again Same effect but more resistant blades and i imagine it takes a bit longer and more money cuz super glue is pretty expensive from where im from