I recently test knitted the Muddy River Mitts pattern by Selana on Ravelry.com. I used Austermann Merino Silk and I love them. The pattern is very well written with a cheat sheet to mark your thumb gusset increases next to the corresponding cable round. Making it really easy to keep track.
They’d make an ideal gift and all of Selana’s patterns are 40% off until 10th May 2015.