One of the coolest gifts I ever got was a Christmas ornament that was none other than Trogdor the Burninator, complete with a little Santa hat. Unfortunately, he broke sometimes during the process of one of my moves. I wish I had taken a picture of him when he was whole. Sigh. One of the zillions of crafts that I want to do is to start using clay myself. I went looking through Flickr for some fun ideas of geeky crafts that you can do with Sculpey® clay (one of the popular brands available) and found these lovely examples: 
This robot is simple but fun. I can see myself easily being able to make something like this at least. by Jeff Robbins 
This seems like it would also be within my grasp as a beginner project. We just got back into playing Mario Kart on the Wii. So much fun! by Timothy Harris 
Definitely one of the more interesting projects that I came across. I’m not sure why Cthulhu is in the jar. but it’s intriguing. by Shawn DeWolfe. If you are interested in working with Sculpey also, here is a video to help you get started:
From the sponsor: "Soft enough to blend easily, but firm enough to hold fine detail, Premo! Sculpey® is ideal for caning, molding, millefiori, mokume gane and other polymer clay techniques. Premo! Sculpey® retains its flexibility after baking, which makes it well-suited for jewelry, fashion accessories, scrapbooking and home décor uses." One lucky reader can win one their own set of Premo! Sculpey® from Fire Mountain Gems. Open to United States residents 13+, void where prohibited. Ends on 9/10/15 at 11:59 PM MST. Good luck! Disclaimer: I will also receive a set of Premo! Sculpey® as part of setting up this giveaway. Opinions are indeed my own. There are also affiliate links included here. Please see my Disclosure Policy for details. Premo! Sculpey® Clay Set
Loved this stuff when I was a kid, I haven’t used Sculpey in a loooong time!
My sister won’t use anything but Premo! Sculpey® clay! We love it, especially the glow in the dark and metallic.
I love Sculpey! But I never knew you could do all of these cool and awesome things with it. I sculpt wedding toppers with it (and only Sculpey). I am learning new things all the time.
I would like to try sculpting some fantasy characters, like dragons. Thank you for the terrific giveaway.
I would make some beads for jewelry making.
I would make some cute animals for my niece.
i would make awesome cosplay pieces. so many possibilities!
My son would absolutely love this.
I would make little items to go with the fairy furniture.