We get skip loads of cardboard boxes and plastic wrap at our shop, ususally haul it all up to recyling but have been making taegets from it.
Multiple layers of cardboard in side another box 30-40cm deep then wrapped in tape works ok, but my bow almost punches right through below 30m. tape on the outside tends to gum up the shafts a bit too.
Now trying 4 layers of plastic sack, fillied with shit-ton of plastic wrap compressed in. Have used a similar one and it worked well....... will see how it goes.
It was all gonna be thown out anyway so no loss if its a failure.
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