Banana to spade adapters

My speakers do not do spades very well. I am interested in buying a used set of cables with spade ends. Does someone make a high quality banana to spade adapter that I could use. The banana end would go into the speaker terminal and then I would connect the cable spade connector to the back end of the adapter. I think I have seen these before, but do not know who makes them. Any ideas? Thanks in advance for your help.
Dave