They sell a bag U-FILL IT ($23), which can be filled with plastic, and other scraps. It works for field points only, broadheads will tear it up.
Make your own from a heavy cardboard box, fill with plastic bags, scraps etc. G. Fred Asbell uses one. Good for home use, not weather proof.
I bought a Block Classic target, still being used after 10 yrs., BH's will eventually eat it up, good for FP & BH's.
Use a small Rhinhart 18-1 which for travel, good with FP & BH's. But, the YOGA Blocks are cheaper...dang it.