Wow. I didn't think there could possibly be a way for anyone to accuse scam on this but here we are.
Anyhow, i am looking to borrow something which i will return at the end. So, if i borrow 50 DOGE, i will return 50 DOGE. As far as the lender goes, he gets exactly what they gave in the beginning. Whether the underlying value of those coins changed, it makes no difference.

Also, i cannot get a cryptocoin loan from the bank. I need altcoins...

Lastly, i can pay interest on the coins borrowed on a daily basis. Or any other mechanism. I clearly said "name your terms"...

Tomatocage, i can collateralize the full market value of the altcoin. Again, I said "name your terms"