Dominique Pamplemousse in "It's All Over Once the Fat Lady Sings!" is a unique musical (with singing!) detective adventure game using stop motion animation by Deidra Kiai, who worked on Deathspank and was formerly an intern at Telltale Games. It is currently on Indiegogo (a service akin to kickstarter) to fund it, and the goal amount is a paltry $9,500.
She has a demo of the game available in flash available on her website. It's likely to be the only stop motion musical adventure game released any time soon, so give it your support.