Combining gift and greeting card, PostCarden is a fun and simple pop-out card that transforms into a mini living garden.That seems really cool to me! It's like this small box you mail out and send to someone, and they water it and it sprouts into stuff! You'll have to excuse me, but this strikes me as very cool.
Obviously it would be annoying to buy 20 of them and then have no one to mail them to since all your friends are lame and refuse to communicate in any way that does not involve a computer, a cell phone, or some combination thereof.
Likewise, it would be annoying to receive 20 of these, but I know that just because I said that someone's going to vehemently disagree with me. Yet if I'd mailed them 20 out of nowhere, they'd be seriously put out.