Smurfs

Smurfs are the blue cartoon characters that live in mushroom houses. Smurfs are also people that buy phenylpropanolamine for a speed (Amphetamine, Ethylamphetamine) cook. Since Phenylpropanolamine can be turned into Phenyl-2-Propanone, then into Ethylamphetamine, you tell the smurfs to buy Phenylpropanolamine. Smurfs get paid to get Phenylpropanolamine, but there's a chance they could get arrested. There are a lot of smurfs.