Nick Jonas & The Administration now have Merchandise up and for sale. You can find it and buy it on the Jonas Brothers Merchandise website:
Direct link to Nick Jonas & The Administration page:
If you pre-order a Who I Am album from the Jonas Brothers Merchandise website you will also recieve a Nick Jonas & The Administration Bumper Sticker. The only down side is if you pre-order and you do NOT live in the USA it will arrive at your door 2 weeks after it has been released.