I made something similar for my pup (and he loves to sleep with it) but it doesn't have my scent so that's a great idea since he's got some abandonment issues and cries non-stop when I leave. Thanks for the idea and let us all know how the denim works for an aggressive chewer!
P.S. I volunteer for an animal shelter and recently had to go out to an individually owned store to advertise but the store had amazing dog toys made especialy for aggressive chewers. They were all kinds of shapes/sizes/colors and made entirely of digestible wool so that hardcore chewers can easily pass the fabric if swallowed. Also, they advertised leashes/collars/etc. made by a company that will replace free-of-charge the item if it happens to be chewed or destroyed in any manner.
Here's the collar/leash company link
And any google search will bring up loads of wool/organic toys if you're worried about him swallowing anything harmful.