I've recently posted an 'ible about how to build a simple solar projection rig
. This is a great way to use your binoculars to observe our closest stellar neighbor!
So far, I've used them to take a look at a solar eclipse
, and once the clouds clear up here, I'll hopefully be able to take a look at some sunspots
, and one June 5 2012, I'll use this setup to observe the last transit of Venus