Custom postage is a FAVORITE finishing touch for invitations, Save the Dates and thank you notes. Custom postage can be created online and two websites which make the process very simple are ZAZZLE and PhotoStamps. Both sites offer pre-designed postage and completely custom postage. The cost is a few dollars more than the standard US Postal Service issued stamps but they are a finishing touch that people will talk about.
photos via zazzle
If you choose to create a completely custom stamp, you can create artwork to match your invitation, use your event logo, or use a favorite photo. Both sites walk you through the process so even the most unartistic bride or mitzvah mom can create something wonderful.
If the thought of creating a completely custom stamp overwhelms you, you can use a pre-designed stamp. Some of these designs can even be customized with your event date or name and initials. With the hundreds of design choices available on both ZAZZLE and Photostamps, you should not have a problem finding a design that coordinates with your invitation/save the date/thank you note.
Both sites are officially licensed by the US Postal Service. If you are using a custom stamp for your invitation (or any other non-standard size/weight envelope), you will need to take a complete invitation (include your invitation, response card and any other pieces that will go in your envelope) to the post office to be weighed in order to know the amount of postage to order. The standard $.44 stamps covers 1 ounce or less - anything weighing more will require more postage. Also, keep in mind that square and vertical envelopes require an additional $.20 regardless of the weight.
a FAVORite Tip: Whether your postage is completely custom or you choose a pre-made design, keep in mind that there may be a color variance betweem your computer monitor and the actual colors in your design when they are printed. Plan ahead when considering your custom postage so you have time to order one sheet of postage as a "proof" and then once you see it in person and confirm it is perfect, you can place your entire postage order.