The wonderful StewMac sell a fretwire bender, to bend the straight fretwire that they also sell. But they want $90 for it. Add shipping, and then ParcelFarce and the UK customs will add their bit, so it would probably cost the best part of £100 by the time it arrived. £100 seemed like a lot for a fretbender ... but the straight fretwire really didn't work so well.
So I made one.
With a little help from a design published a projectguitar.com ...
And now I can transform straight fretwire into nicely bent fretwire.