Hi,
I have recently invested in this ICO called SKYFChain. This is a really cool idea and I love the whole industrial drone thing.
They are currently still offering a 30% bonus.
https://sale.skyfchain.io/cabinet/ref/ZnJ5OU1zdU1QQkNUTHRkanZ3RzZOQT09Yes, the above is a referral code. Do your own due diligence, but this looks like an amazing legit concept to me personally.
You can also refer your friends and receive an additional 5% tokens.
Cheers.