Looks weird, of course, but if it does what you want then it's a winner!
I really dislike bobbed hammers. Not sure why, aesthetics or something... maybe OCD? Probably why I think this looks weird, too. Anyway, vs. a standard hammer, does this shave off an appreciable amount? It looks somewhat shorter. Do you think you'll do any more contouring to make it 100% snag free? It's certainly an interesting little project at a fairly low cost.