Play in a new medium for a bit...mess around with some paint, simple quick strokes of whatever comes to mind. (not looking for a finished piece--just a play ground). Dump out your junk drawer, mix and match, make piles. Walk into your closet with a paper towel tube, look through it with one eye and wait until you get a combination of colors or textures that make you smile. Go into your yard and lay on the ground- a new view can help. Flip through a magazine upside down and watch for colors that grab you or unexpected shapes. Play with some mixed media. Listen to some favorite music with your eyes closed...let your mind wander. Mix it up!!
We all get in creative funks from time to time. For me...its letting go of my primary focus and finding something playful else where....eventually I get back to what I wanted to work in but have had some fun in the journey!