Who would ever have thought that something as mundane as a security envelope could provide so much inspiration? The patterns on the inside of the envelopes, used to secure things like checks and personal information, aren't something I ever noticed. Leave it to the eternally clever minds in Blogland to see the potential…
Check out over 120 security envelope patterns on Joseph King's flickr set.
Or wear one on your jean jacket or laptop case, by Sweetie Pie Press, via Parcel Post.
Or turn them inside out and mail someone a letter, via Design Sponge.
Also, Ez always has some really fun free downloads over at Creature Comforts, and she's got some cute labels that she designed using security envelope patterns. Check it out here.