I have these piling up around my LEGO corner:
Any suggestions for creative uses? Especially multiple?
I have seen a number of very creative builds with the orange brick separator. Here are some examples:
Spaceship by F@bz: http://www.flickr.com/photos/fabz71/12434428513/
Mech by Lewis Meeny: http://www.flickr.com/photos/tr0jinh0rse/11318913594/
Deep Sea Explorer by Keith Reed: http://www.flickr.com/photos/keithreed/12943153094/
And my favorite is this Clown Fish X-wing by dr-spock-888: http://www.flickr.com/photos/dr_spock_888/20558633496/
And there is also the super secret worship room of the cult of the Followers of One Long Orange Object or FOOLOO by cimddwc: http://www.flickr.com/photos/cimddwc/24779936911/
To add to TheBrickBlogger's suggestions, F@bz has another spaceship that I believe is worth mentioning: https://www.flickr.com/photos/fabz71/21111423905/
I recall seeing an awesome dinosaur made almost entirely out of Brick Separators on Flickr a while back (and I believe it was called a Separatosaurus) but all my searches have been futile so far. That said, google "Brick Separator MOC" and you can see many designs.
One thing I've been using some of my brick separators for is in the construction of wedges for robotics and competition builds. The semi-sharp prying edge is sharper than most parts, and the angle is decent enough for a low wedge.
They have no strong connectors of their own, but the height of the brick edge is 2 plates tall, meaning it will fit well between 2 Technic bricks, with Technic pieces holding them together.
With a design like this, you can easily connect it to a Technic beam, with it freely swinging down to make ground contact.