I'm always keen to be exposed to new ideas and one site that features inventions, designs and creative ideas and products is www.iNewIdea.com.
These don't usually have anything to do with writing as such, but just seeing some of the innovative (and sometimes rather bizarre) stuff that people come up with might spark new ideas in yourself. Not that I think they're all great ideas...for instance, here's the teddy bear blood bag...
I guess this is supposed to cheer up a child who is having a transfusion, but if I were a kid would I feel better as I watched the blood slowly draining out of the teddy bear...?
On the other hand this simple reworking of a tissue box is charming.
(Ps: In my original post, I had the wrong web address for this--it's iNewIdea.com--I'd left off the i) - j.