Check out my site, Bitcointap.xyz
It uses the faucetbox script which has multiple site layout/designs in the admin panel, which by the way looks really nice and is very clean. Very easy to configure, just needs you to create a database & enter the details in the db.php then you can log on to the admin panel and edit whatever you want. Allows use of multiple captcha services, and has ad slots.
If not, you can also choose to use faucetfly which is a free faucet script, not very good in my opinion. No ad slots (hard to get), no choice of design, sub domain (.faucetfly.com) and kind of slow.
Those are just the options for a free script, there are many others. I haven't really seen many faucet script sellers on here but some are selling sites if you go in the auction. They come with the site script and some look cool. Good luck finding what you're looking for.