These are really cool for the garden! Plus they are an absolute steal just now... grab a Solar Powered Colour Changing Christmas Tree Light for just £3.99, reduced from £5.
The Solar Powered Colour Changing Christmas Tree Light isn't tiny at 23cm tall. Read the reviews, these are highly rated.
What I love is that you can bring Christmas to the garden in an eco-friendly way. They run off of sunlight, so glow at night (and change colour). That means they won't cost you a fortune on batteries or electricity.
A full charge gives 6 hours of them giving off light.
I am buying a few to light up the path in my back garden.
You can Click and Collect the Solar Powered Colour Changing Christmas Tree Light for FREE from a Maplin store near you.