Liquid latex is a godsend when it comes to cleaning up around your cuticles! It works really easy: just apply some liquid latex around your cuticle with a brush and let it dry. I poured some of my latex into a clean polish bottle, so I'm using the brush that is attached to the cap.
When the latex is dry, it feels a bit like thin rubber. You can now make a big mess on and around your nails, for instance by doing a water marble design or a gradient, or something else messy like sponging glitter (glitter is always a huge pain to clean up!).
When you're done making a mess, just peel off the latex and it's clean around your nails, just like that!