Step 3: Final Outcome...
We let the epoxy set for a couple of hours and then tried out the accessorized cast. The Legos worked perfectly! He could not wait to take his accessories to school!
We showed his arm to mom and she said, "You did what?"
All in all, it was a fun little project and did not affect the cast and made his broken arm more fun. The doctor was able to cut off the cast as usual.
I hope you enjoyed this Instructable!