SERIOUS ANSWER HERE
OP: go to Walmart or your local grocery store, find Certo liquid fruit pectin. It's used for canning jam/jellies. It's like $3-5 for 2 pouches (it'd come in a blue box). 2-3 hours before your test, mix one pouch in a pitcher of water and drink it all. It tastes like unsweetened lemonade. This will give you a pass. I used this twice (both times having smoked the night before the test) and passed both times.
so you know what to look for