I'm drawing a blank when thinking of uses for either. I think you would be better of purchasing one of the available .mobis that are left, here is the updated list of some nice four letter dot mobis from RegFee. (there are a lot of LLLL.mobis left, these are just the ones he thought were the best, and I would have to agree for the most part)
HAZE.MOBI
PURR.MOBI
BIFF.MOBI
CLOG.MOBI
TARP.MOBI
PIMA.MOBI
ICED.MOBI
KBAR.MOBI
CUSS.MOBI
STEW.MOBI
SEAM.MOBI
SPAY.MOBI
MANO.MOBI
SLAY.MOBI
WAVY.MOBI
SLED.MOBI
SLUM.MOBI
LUMP.MOBI
FRAY.MOBI
DISS.MOBI
PROG.MOBI
SNOT.MOBI
SUDS.MOBI