There are very few things that will fit on a blotter in an amount that would hurt you. Ricin, botulism toxin (neither of which is even remotely associated with LSD) 5MEO-AMT is fairly common, until they outlaw it, probably by the end of the year. You trip or you get ripped off. It really is just that simple. And if anyone finds DOB or DOI or DOM on a blotter, let me know, I'll buy some.