Dolphin Original 3D Crystal Puzzle from BePuzzled, Ages 12 and Up

Takes a while to do - but I completed and have on display :) Challenging and a nice display. I put masking tape on all the pieces with their numbers so that when I put away the pieces not installed yet -- I didn't have to figure out again which was which. I like the tip of using a towel or colored background when reviewing the pieces. Sometimes I also used masking tape to hold the item together since they do not necessarily interlock so that an accidental jarring doesn't separate. The swan I ordered -- took less time but I ended up having re-do half of it twice since applying pressure to use the connecting rod to screw things in place is enough pressure to separate the items already put together.