Goal and options: To get egg shell out of batter.
output answer: Use the rest of the eggshell to scoop out the rogue shell pieces! The pieces will stick together and you'll be able to scoop them right out.

Goal and options: To keep pasta shells from sticking to the bottom of a slow cooker
output answer: Add some pasta sauce to the bottom of the slow cooker and under the pasta

Goal and options: t-shirt
output answer:
can be stained by mustard usually