Word of warning: don't put in any money you're not willing to lose.

3 years ago, sent 20 litecoins to a Chinese 'cloud mining' website. It had an exchange which let you buy hashrate for litecoin and bitcoin. If you held 'hashrate' there, it would mine for you. Once you had 3 Mhash, you could 'withdraw' it in the form of them shipping you a scrypt asic miner capable of 3Mhash, on the same page where you would withdraw your BTC or LTC.
A very well designed site, and my LTC balance was increasing as I was holding a few Mhash there.

Well, a few days later, the site was gone! Only the cloudflare proxy at the front remained, and all my LTC were taken :(