Small Increment Paper Stamps

One way to create an exotic and colorful envelope is to use small increment stamps.  You can find "mint" paper stamps in lots on eBay - often for less than their retail value.  Most will still have their sticky backing and can be adhered with a wet sponge.  For stamps that have lost their stickiness use a simple glue stick to paste them down.  In addition to saving money, using vintage paper stamps is better for the environment, because they are printed on a renewable resource (unlike plastic stamps, which are petroleum-based and have a disposable plastic backing).