make your own
easy way is soak your bud in alchol, strain, evaporate in a pyrex dish, and before its all evaporated put in a little less than a tenth of the weed you soaked in the alcohol
but make sure it is powder first
you can use ethanol or methanol or iso alcohol wich is a mixture of both

good thing about making your own is theres no camel shit or bananna peels in it.