I don't know if you have noticed it but there is an AWESOME blog candy over at Feline Playful and today when i do and look for what's the challanges for the day I see that there is another candy added !!
I can strongly reccomend Feline Playful If you like challanges. Karen, the owner of the site has done all the research for you and found all the challanges and she updates them every day. It could not be easier to find what's the most recent challange.