Savings account or some other relativelly low risk investment with Bitcoin?

[TiagoTiago]

I know that just sitting there my 'coins are growing in value, but that doesn't compare to the psychological effect of seeing numbers get bigger; is there anyone out there offering services like savings accounts (where you deposit money and if you don't pull out too soon they pay you some interest) or some other low risk investment where i can put a few coins in and be able to trust that in a few months (and of course in a couple of years) i'll still have them all if i want to withdraw, and likely will have a little more than i put in?