We want to change the hang tag on of all our products to a re-usable keychain so our packaging is re-usable - we are making this change so no part of our product or its packing is thrown out which is better for the environment. The keychain must be made of a simple metal plate (preferably recycled material) and cable, not a ring, so that it can be easily attached to our products. The plate must be a simple shape and small size (eg. 20mm x 7mm) but large enough to have our company logo laser engraved on one side and each keychain individually numbered on the other of the metal plate.  As this keychain will become a feature on all our packaging for everyone of our products, this would be long standing, on-going business, therefore the pricing must be very competitive as we will be ordering 100,000++ units per year. If you have any ideas as to how to simplify the design to get the price down, we would be interested to hear them. Looking forward to hearing from you.