Take out that jigsaw puzzle you have been meaning to do, play some sudoku, try a crossword or even get yourself a colouring book.
Gwnewch y jig-so rydych wedi bod yn bwriadu ei wneud, ewch ati i gwblhau posau sudoku, rhowch gynnig ar groesair neu prynwch lyfr lliwio i'ch hun.