I remember reading somewhere in this forum about custom made strap, which I believe very few or rather none here in Malaysia. Just share some potential of this business;
1) Customer available immediately, those sucker of Strap

2) Partial of Pam, B&R fans become your customer.
3) Croc skin supply is very near, plenty from Thai
4) Most customer order or buy from Oversea, you can check some thread here, these are your potential customer
Cons
1) you need to know how to sew
2) If you dont know how to sew, you need to hire Sifu to do the job
3) If you cant hire any sifu, please refer to Rule 1

The Shop name "1 Malaysia Strap"
