oooh, that looks the nuts that film does!
What I normally do is get the image, put it inside the shell and draw the image onto the outside in marker pen, this way it doesn't move around when you're trying to cut it.
Then just mask it up and cut it on the shell.
for the transformers text, if you print it out the wrong way round (mirror) get a peice of lexan and tape the text print out to the underneath, cover the other side in masking tape and cut it into the tape. then when you've cut it, remove what you don't need, cover it in tape, pull it off the lexan and then stick it to the inside of the shell (you may need a light source underneath to do this). If you do 4 lots, stick the main ones on and then place the other two lots of txt just below and to one side to create the drop shadow. paint the main part of the shell first, peel the drop shadow off and paint black, then peel the main text off and as required.
Or you gould use picture glue and put them on straight from your printout.
Or......PM me and I could sort it you out.
