Making sounds for a cutesy iPad game for little kids learning to read. At one point there is a cartoon spider that runs across the top of the screen. The producer has requested a sound for this. I'm kind of at a loss. Any ideas?
Re-watch A Bug's Life for tons of ideas. If you can get the DVD, there's a whole track where it's SFX only: No dialogue, no music. Full of neat ideas there. Seem to remember that Ben Burtt used handcuff ratchets for the feet of the roach in Wall-E. Just some ideas of existing SFX to get you unblocked.
Close-up, dainty, tight foley or SFX seem like they'd work well: Keeping footfalls short, truncated, short, like quiet IDM/electronic clips/hits/thwips. Just another thought.
But, of course, it all depends if it's meant to be funny, creepy, silly, or a notification of some kind.