Next, enter htwins.net/ball/? (yes, the question mark too). Now, here comes the fun part: enter in your message (using only a-z, 0-9, period, !, ?, comma, ', and space)! Remember that the top and bottom row each contain ten characters. Your message will wrap to the second line after ten characters. That's okay, but if you want it to look nice, you'll want to add extra spaces to push characters onto seperate lines.
When you're done with your message, click the green arrow (it might be labeled “Go”). Your message should appear on the hanging, colorful balls! You can even email that “htwins.net/ball/?your message” URL to someone else to enjoy!