Jack is easily one of the coolest, most well-written characters in the Mass EFfect universe. She's rough, tough, and she's not someone you want to mess with—especially with her biotic abilities.
Unlike other characters who wear their hearts on their sleeve (*cough*Jacob*cough*), she suffers in silence and only makes her true feelings known to Shepard AFTER he (or she) ventures to solve the riddle of her childhood.
Anyway, enough musing on about Jack. Here's a papercraft version of Jack that an artist, tankball on DeviantArt, has put together. She's life-sized and it's hard to tell whether it's cool or creepy.
The papercraft has her wearing her outfit from Mass Effect 3, which makes us wonder how much they'll change the character for Mass Effect 4 (or whatever it is they're calling the next game) if she's in it. She better be in it.