Customizing is not business, if you are in it for the money get out now. The chances of you making a lot of money of of customs is very low...Just saying in general for anyone else as well.
But like already said there is a sticky up top with a lot of good info
^^^
another Sac head. I'll help you out.
Yes use blue painters tape. Works fine
Customs straps on the tongue? Care to explain a lil more?
Any ways depending on what kind of material you want to make the straps out of you will need a sewing machine or stich by hand witch may become difficult...