Slide guitar Nut Extension - uk supplier?

[Red Paul]

Hello all, newbie here :redface:

Does anyone know where I can find a nut extension to play a 'regular' acoustic as a slide guitar? i.e. fits over the top of existing nut to raise up the strings to prevent fret-buzz when playing slide.

They seem quite easy to get in the US, but I can't find a UK supplier - any ideas?
Also, any recommendations of best type, or experience of using these?

Thanks,
Paul

[octatonic]

Hi,

Where in the UK are you?
I bought 5 of them when I was living in the US (from StewMac).
I could let you have one for what I paid for it, no problem.

Jim