Have you ever had a flaming dr pepper?
6 oz beer (any cheap beer works fine)
1.5 oz 151 rum
.5 oz Ameretto
Light shot on fire and drop into glass of beer and chug.
Doesn't make much sense but it taste exactly like dr pepper, they are awesome.
Also, Kokanee Cola:
Drink the long neck out of a kokanee, and fill with captian morgans spiced rum back to full level, tastes like coca cola.