Another variation is this:
Nina (isn't she cute? :D ). Lomography is all about taking chances. But your shots will be best when you've taken a chance in a photogenic space. Something I learned kind of the hard way is that you don't want to waste shots on things that are not going to be very interesting - like a cup in a shady place (Holga photos need sunny spots), or something kind of drab in colors (unless you are using black and white films, or the drab colors is going to translate a message to you viewers). In the picture above, Nina is dressed in bright blue. She is in a bit of a shady spot, but the sunlight shining through the trees makes amazing shadows on the ground. The woods behind her is not only a good backdrop, but show a size reference (in other words, Nina is not a giant). I will point something out though - firstly, I did not plan all this. It just happened. But I noticed after I got my photos back from the lab why this one was so much better than a lot of the others.
What about sprocket holes? Well, to get sprocket holes I used my 120 N Holga camera (that uses 120 mm film), and put 35 mm filme in it to take photos. I asked the lab to process my film with the sprocket holes, and voila - SPROCKET HOLES! You may have also noticed a different between the sprocket holes in the photos above. Some are just black holes (my personal favorite) and others have green, red and yellow lines and numbers around the sprocket holes. The only real difference that I know of is the film I used. In the former, I used a Kodak film. In the latter, I used Fujifilm film. It's really just your preference.
These are just some tips that I've found in my use of the camera. There is so much more I have to learn, and it also depends on what camera you are using. Hopefully I'll be able to post more soon! :)