E.g. Southern Comfort + 7-Up. It's very sweet though, so it sort-of sneaks up on you before hitting you with that 20 pound sledgehammer.

On the less sweet side:

1 part whiskey (your choice)
1 part cranapple juice
3-5 parts water (depending on how hammered you want to be)

is something that I can drink like iced tea (in ~ 20 oz tumbler). It's easy to drink slowly too, and the water helps keep Mr. Hangover away.

Don't over do it on either one. :-)

Cheers,
Scott.