Need some more advice ladies....

Tanning creams.

Well my Christmas party is in 4 weeks and I have bought a dress (don't usually do dresses) so my legs as you can imagine are porcelin white. Not a fan of solariums (do skin cancer cases at work... ) and spray tanning I am not too sure of either, so what is the best cream? Not the fake tan the ones that you put on and it gradually builds up a tan..... Don't want to look like an Oompaloompa all orange... IYKWIM