served.lol: Mail physical joke invoices and legal notices to friends.

Hey everyone. I built served.lol so you can send physical gag letters to your friends. Right now there are about 15 templates in the style of legal notices or invoices. All fields are customizable (with the exception of the return address to avoid fraud). The whole process takes about a minute. Select a template, optionally customize the content, then preview a PDF of exactly what the letter looks like to confirm it's what you want. The site handles all the printing and mailing. It even includes tracking so you can keep an eye on it as it moves through the mail system. I am trying to get my first few customers and see if this idea actually has legs. Let me know what you think of the site or if you have ideas for other templates I should add.