Okay, a friend told me about this, I've tried it on my computer and I've had a chatroom do it (Cue de bacn).

Basically if you go to "Run" then type in "Telnet"

It should open a black box saying "Welcome to Microsoft telnet client."

Now, from here type "o", it should now say "< to >". (If it doesn't, you've typed a zero rather than an 'o'.)

From here type in "towel.blinkenlights.nl".

Viola. Enjoy.