Amigurumi is part of Japanese culture and it is a form of art in which anthropomorphic creatures and animal shapes are stuffed or knitted. The art also involves crochets and they are known for their cuteness.
Lady Lindsay has designed a series of Amigurumi dolls that can be used as gifts if you are visiting a geek. In fact, she would do custom orders and you could tell her which Superheroes, fantasy characters, popular movie characters, or anything else you want.
As you can see, she has already designed several Amigurumis. You can find Batman, Iron Man, Spiderman, Wolverine, The Hulk, Blackcat, Dead Pool, Green Lantern, Aquaman, Captain America, Wonder Woman, The Flash, Robin, Daredevil, Bullseye and The Joker Amigurumis.
I am sure once you buy one of these, you would get addicted to them, and keep ordering them time and again.
If you have some spare time, you could go ahead and learn the art of creating Amigurumis yourself.