yea alot of the cruiser bars actually have the 7/8 bmx style clamps without the 1" bump. bmx bars too.
also alotta moped clamps are wide enough for accomodating many bike bars anyway cuz they'll clamp outside the bike clamp increased diameter.
i've done it a few times.
Also i've got some thick gauge 7/8 layback cruiser bars if you want em i'd send em to ya cheap