Would you like to make better photospheres with your Android smartphone? Nodal point adapters for DSLR are available, but expensive. I made a simple and easy-to-built nodal point adapter / panorama head, which can be built in few minutes only!
The nodal point is the optical pivot point - as most of you surely know - is very important when taking pictures for a photosphere. It is located directly in front of you smartphone's camera. Especially in halls, churches or rooms it is hard to make a good photosphere without a little helper like mine, which lets you rotate the smartphone around the nodal point.
What you will need: a tripod, a welding rod, aluminium 2 mm (I think you can use wood or whatever, too) and I used a plastic cap to attach it to the tripod's screw. And of course a cheap smartphone case. I got one from ebay made of polyurethane (PU).