try this,
WiLife - Spy Digital Clock Security Camera for WiLife Spy Security Camera System
Model: DLC-810c | SKU: 8560782
http://www.bestbuy.com/site/WiLife+-+Spy+Digital+Clock+Security+Camera+for+WiLife+Spy+Security+Camera+System/8560782.p?id=1188562133987&skuId=8560782&st=nanny%20cam&contract_desc=null
It is a bit pricey but i think it is what your asking for.
Hopefully this will work for you since the camera is hidden.
Hope this helps.