When I spend a lot of time on a single project my mind starts to wander. I will start to think about all the awesome things that I could be knitting. There are some really cool techniques out there that I haven't tried yet. So I made up a list of things that I want to learn to do.
This one amazes me. I remember the first time I saw it in a yarn store. It blew my mind. When you look at the item straight on you will only see two coloured stripes, but if you look at it from a different angle a picture appears. Some people go all out and make really amazing works of art. Check out Wooly Thoughts for some of the best examples of illusion knitting.
Now, I'm a big fan of colour-work. It makes everything so much more exciting when you brighten them up a little. My previous projects have been worked with the Intarsia style, such as the batman wristband or the skullkerchief. You can do some fantastically intricate knitting with with Fair Isle. A few of the designers that inspire me are Spillyjane and Tonks.
Alright, so I know I've talked about learning to crochet before but I am far from an expert. Amigurumi is a term for crochet toys or stuffed animals. It amazes me how versatile you can be with a crochet needle. I have seen beautiful and complex amigurumi. An amazing nerdy designer is Lucy Ravenscar who crochet a set of star wars toys. You can find her blog at http://lucyravenscar.blogspot.ca/
More on Illusion knitting: http://www.intergalactic.nu/wp/2006/06/21/7/
More on Intarsia and Fair Isle knitting: http://www.idiotsguides.com/static/quickguides/hobbiescrafts/multi-color-knitting-intarsia-and-fair-isle.html
More on Amigurumi: http://www.examiner.com/article/crochet-101-what-is-amigurumi
More on Amigurumi: http://www.examiner.com/article/crochet-101-what-is-amigurumi