I had no bud but I had a jar of good hash oil, Instead of just letting it drip down the hole we added about half a bowl of leaf for it to melt into and used that as a filler. I only tasted the oil, and I got wayy more stoned than I like, thats what happens when you think "oh it wont be that good, have to take a bigger hit" but I would just suggest bud if it is full melt, a screen if it burns nicely and doesnt need anything under it but a screen, or if you have no bud then use some leafer