Comp Chips - How to Bet?

[mingorama]

I've been offered two $100 comp chips to gamble with from a LV casino. Previously, when I've accepted the offer, I used to bet them both at the craps table --- one on the pass line, one on the don't pass line, with a side bet on the 12 (effectively converting the comp chips to regular chips). They don't allow this anymore. What would you recommend as an alternative to bet these chips as safely as possible?