USB flash drives 25,000 won for 2GB and 35,000 won for 4GB
Paper Toys: Small for 5,000 won, Medium for 8,000 won
and the full set for 12,000 won
Slogan/bandana for 7,000 won
Light Stick (Version 3) for 13,000 won [as posted previously]
Hoodies for 55,000 won
Shopping Bag for 3,000 won
Towel for 15,000 won
Cape for 17,000 won
...and more to be announced!
Source: http://bigshow.ygbigbang.com