I once gave my Uncle who collects mining artifacts a 400 Lb "lump"...

One of those stories where you had to be there but his granddaughter who was about 4 at the time comes down the steps and sees the coal and her eyes get about as big saucers... "Whoa who got that?" she says. Grandmother responds your Grandpa, she takes long look at Grandpa and goes "You must have been really bad!" ... Like I said you had to be there but everyone that was in the room just about fell out of their chairs.
Anyhow, I've considered doing a Christmas stocking/lump-o-coal service as I'm sure it would go over nicely especially at this time of the year but just like my many other ideas not enough time....
Considering getting a lump would be pretty hard since you don't live in the area maybe if you made something up with the pea coal... Maybe if there was something in particular you could put it in besides a stocking? Ceramic stocking maybe?