Portals

You work a night shift at Aperture Science Enrichment Center, the company that made portal guns. Since not much is happening tonight, you decide to take a break and find creative ways to use one of the guns... [suggestion: be a bit more descriptive and active in your messages to obtain the best results. The first responses or two might not work perfectly, but keep at it, as you get in the action, it'll get better! Have fun :D]