Just get some salvia. It's legal in almost all the states in the US and it will fuck you up for like 20 -30 minutes. Especially if your looking at 50x+ stuff
I actually have some on my desk, but I quit smoking it. The high it gives you is amazing, but you'll have the biggest headache of your life when you come down if you smoked too much. Just a warning, but little is known about spice, and my mom who is a nurse has people come in regularly with organ failures due too smoking spice. I'm currently staying away from it until more is discovered about the drug.