Although the Sentry was created fairly recently (in the 2000s), he's supposed to have been around from the beginning of the modern Marvel universe, a la early Avengers/Fantastic Four. As such, his costume was altered to be more Captain America-esque, with cowl, trunks, and gloves. For my figure, I kept the head, removed the hair, and added an Ant-Man helmet. I carved and sanded the helmet to shape, and attached it to the face. I altered the belt slightly, and added pieces to the cape and gloves.
Thanks for looking. Comments are always appreciated.

'til next time,

TommyX