Gor Lon speaks some true words, use leather, linen, wool and start with some parts of leather, wool and linen are MUCH easier to handle than steel and ironworks and therefore much easier to start with
make sure you use natural fibres, there is no such thing as orcish plastic
hand work is the key to a rugged individual look
start sewing some trousers, a vest or a skirt from rough linen or wool, use your imagination to destroy it, pretty much everything is allowed, use hammers, files and wire brushes, everything you can imagine, drag it with your car on a farm lane, blow it up with fireworks, burn it, use a sandblaster if you can ...
then fix it with different materials, use rugged stitches and different patches, then destroy it again
make some litres strong coffee or tea and let the fabric "marinate" for some days
use shoe polish, dye, wax or plain dirt to "improve" the look furthermore
red beetroot juice cooked with starch gives you a great artifical blood for some spots
if you want to use leather parts, just use a hammer and a hard surface, thats gonna destroy the inner structure of the leather and gives you an awesome look in return, dont use rivets, sew it even if its a LOT of work, the returns are well worth it
the biggest key in an orcish look are many different layers, different colours, materials and states of destruction
if you dont know where to buy the materials you might want to search for some reenactment groups and traders and ask them if they can help you
you might be able to order from lederkram.de which is where we get a lot of our stuff, but shipment to the US is gonna be expensive
that should give your group a great push in appearance, the next big step would be armor, weapons and masks, three things were i cant help you, but maybe someone else can
