My cousin had these guys at her wedding at Loch Lomond. I thought they were pretty good, but I will acknowledge that drink had been taken..
https://www.thebigpapas.co.uk
I totally want that, having had a quick look at MacDaddy's Shukers. Unfortunately, poor quality control means that this otherwise very perfect and beautiful thing was assembled with five strings, instead of the regulation four. Tut!
This can be done wirelessly with the iRig Blueboard. I had one for a while, intending to use it with software loopers on my iPad. It worked perfectly with that.