The Internet is full of web sites offering hundreds of free printable games so try the following: Crossword puzzle enhances the ability to stimulate the mind by answering clues and vocabulary. Brain Teasers: it challenges your mind to test your skills and helps to improve it. Puzzle: jigsaw puzzle is the most famous puzzles of all. Word Search: it helps to construct words which especially help children above the age 5 to learn new word building. Maze: a game which is constructed like a muddle where a player sits on his seat travels from start to end with its own imagination. Sudoku: this game is all about calculating and filling the grids in such manner that in each row, column and block the digits enter one time each.
As you already know, some of these choices are simply a way to "kill some time". But some other fun hobby ideas will actually relax your mind and body, and help you grow your skills in the process.