'10 Minute Mail', and 'Instant Storm'

10 Minute Mail

10 Minute Mail gives you a temporary disposable email address that is good for 10 minutes.

http://10minutemail.com/10MinuteMail/

Instant Storm

InstantStorm is a Windows freeware tool for creating Flash based screensavers with many advanced features. All you have to do is to choose a SWF file, set screensaver parameters and compile an executable installer. All 32-bit and 64-bit versions of Microsoft Windows are fully supported, including Windows 95 and Windows Vista. And the best of all -- there are no nag screens or other annoying stuff. Unlike many other tools, InstantStorm allows you to fully customize your screensaver's about box, installer and uninstaller including all texts.

http://www.instantstorm.com/