Aviations are fantastic, but one of the easier drinks to get wrong in the hands of a novice bartender.

Too much lemon juice and it's terribly sharp. Too much creme de violette (or a substitute) and it tastes sickly.

For something in a vaguely similar vein, but which is a bit more idiot proof, check out the Corpse Reviver number 2:
3/4 ounce gin
3/4 ounce lemon juice
3/4 ounce Cointreau (triple sec)
3/4 ounce Lillet
1 dash absinthe

Shake ingredients together in a mixer with ice. Strain into chilled glass.