Adam, use a bigger sack lah.... like that all the arrows zip ah... then lend in field... cannot find... people play in field.... kena arrow in the leg...parents complaint..... You get the idea... Hee Hee...
By the way, can try those card board boxes (from TV, fridge etc), cut them to size and stack them up and put it in a target frame with the "holes" on the surface... can stop arrows well, but then very hard to remove... haha and end up with bent arrows~