I've remixed Makerbots headphone stand so that it not only holds your phone, but you can also mount an emblem/crest on top of it.
This stl is one of the emblems I made. It's the feral druid's logo from World of Warcraft.
You can find the headphone stand for free on my profile.
• Size: 120mmx 120mm • Layer height: 0,20mm • Infill: 10% • Support: no • Print time: +- 3.5h