duct tape messenger bag

this instructable will show you step by step how to make a messenger bag out of "duct tape"

Step 1 Materials needed

you dont have to follow my mesurements exactly but it is a food size i will fit 4 laptops in it and it works really well i would say that this cost less than 10 bucks even 5 dollors 

duct tape  $1.00
eletrical tape $1.00}
metalic tape $2.00} not needed buti used it
cloth type plastic thingy $5.00}
spare strap(i used a gutiar hero strap) FREE
and velcro $?

tools:
ruler
pen
scissors