Selecting A Winner[/size]
We take every transaction hash and create a sha256 hash from it. If you purchased multiple tickets in the one transaction we rehash more times with an extra number at the end each time until you have the same amount of sha256 hash's as ticket entries.
It's then a process of finding the one with the highest number. In the case there are multiple with the same number, they move on to the next round where we rehash them then repeat the process.
This goes on until just the one entry remains and becomes the winner.
The whole process is automated by a script in our system to save a lot of time.
IMO 2 things jump out at me when I read your pitch:
1) Incomplete info on how a winner is selected: you will need to provide a full, detailed explanation of how you calculate a winner for this to be taken seriously.
2) Hefty rake: 50x .5 btc raffle tickets = 25 btc = ~ $300 and you ship a $150 BFL Jalapeno that may or may not be delivered? Also what if BFL does not deliver by January? Feb? March? April?