You can create an obstacle course with a ball of yarn in the house and hide something like a trophy or something of lesser value (magazine) and go through the yarn to get it. Think of the yarn like laser tripwires and don't touch them for a true challenge.
Yarn dolls
There are many patterns available to make fun knit throws from chunky yarn. Some are available via specific knitting websites; others via yarn manufacturers' websites.
some fun things are helping the community and getting lots of money
It was sheered from a sheep then put through a spindle and spun unto yarn. Some times natural things were used to dye the yarn with.
Some good yarn craft ideas for adult beginners are things like tea cozies, iPod socks (this is a sock made specially for an iPod to keep it from getting scratched).
swim
Your friends.
Go ice skating with some friends! [REALLY FUN!]
Some collars are made out of yarn, some out of metal, some out of wool; depends on the collar.
some fun things to do would be to watch anime like naruto/ bleach/ inuasha etc and make Chinese food
Some fun things to play on the piano include popular songs, classical pieces, jazz standards, and improvisation.
Anything Mario for the wii would probably be appropriate. Kirby's epic yarn is another option. Little big planet for Ps3 is another fun choice.