You can use them for funny costumes, for a Lego Party, Carnival or Halloween. You can even just give them to your children to play!
If this is for a party: it can be part of the Party Activities, so the kids colored and cut them, or to give them as part of the Party Favors.
If you want to print them in a bigger size, you can use "posteriza" (free download).
Remember to do a click before saving, for having the image in its best quality.