Vintage Salesman's Sample Bag of 3 Pig Charms

3 grey pigs, 3cm long, with loops for tails..to hang them from things that need pigs hanging from them
There's a label on the bag from 
ELEMENT TRADING CORPORATION
HONG KONG
with price, quantities etc
Salesman would take these (and the others I have) to shops to show what they had available.