Icon choices

I am building a website at the moment for a local construction company and I wanted to sell the benefits of their service, so it seemed like a nice touch if I could add some graphic explanation alongside the header descriptions through visual icons.

The difficulty is that I soon hit a brick wall when I bring up the icon font manager and discover the choice is pretty limited. For example I wanted to mention that the client is fully insured against accidents and something like a ladder or a hard hat would have done the tricky nicely, but there is nothing even remotely close to that.

How are others sourcing icons outside what is available in the icon font manager and using them inside Blocs? It would be nice if there was a plus and minus button to add our own collections.