Ranged is extremely fast if you can afford to chin to 99. You could get it in about 2-3 days from your current level.
Some other easy/fast 99's for you would be Fishing, Cooking, Firemaking, Woodcutting, and even Runecrafting now that Runespan is out. (my friend got 55-99 Runecrafting in less than 2 weeks with the addition of Runespan, and it didn't take too much time at all).
If you have a lot of cash, then pretty much ANY of the buyable skills are achievable through more expensive methods in just a week or so each.
EDIT: Woops, didn't see OP was banned.