Here are bitcoin 30min faucets for people who uses coinbox:

Rawbitcoins.com
Canhasbitcoin.com
Bitcoinspain.net
Elbitcoingratis.es
Srbitcoin.com
Nioctib.net
Virtualfaucet.com
Thebitcoin.me
Freebitcoins.me
Btc4you.com
Freebtc4all.com
Faucetbtc.com
Btcmine.net
Bitcoins4free.me
Greencoins.org
Thefreebitcoins.com
Bitcats.net
Fr33bitcoins.com
Freebitcoins4u.com

All of them combined gives around 530 so called Satoshi. And you need 5500 to cashout from coinbox.
Best thing- when you complete all these sites, first one will be open for collecting again. So you do not have to wait. Just repeat and repeat and cashout and repeat ;)