I have on samples but you could try to google hurdy-gurgy And backpipes. Both especially in combination can give a great drone sound. Original backpipes are medival instruments and different from the scottish ones. Both Instruments have a drone note combined with melody notes.

Hope this helps!

I have no samples but you could try to google hurdy-gurgy and bagpipes. Both, especially in combination, can give a great drone sound. 

Original bagpipes are medieval instruments and are different from the Scottish ones. Both instruments have a drone note combined with melody notes.