So weird - I was reading Car Hacks for Cleaning Your Car and one of them was to make "car cleaning slime" to press into crevices on dashboard and doors to get out dirt I haven't tried it yet but their recipe was:
Car Cleaning Slime
1/2 cup liquid starch
4 oz. Elmer's glue
1/4 cup water
Now if we could just get all the kids to use their slime to clean the cars!