Just make a collage with a giant middle finger that pops up.

Flawless! I'll keep that in mind!

You need to be creative.  If it looks or resembles anything that exists or you've seen before, scrap it and start over again.

If i was a juror i would look for a collage that offers multiple angles/view without even touching the model. be inspired by the works of archigram, piranesi, zaha hadid paintings & escher.
 

I believe your exercise is about creating a form that is inspired by something else. In the real world, you may have a client who says that they want a building that looks like A. But the site and program does not allow for A, so you have to create B which is inspired by A. Architects look to the everyday world for inspiration. Sometimes a piece of clothing fabric or a piece of furniture becomes something that is an architectural element within the building, or influences the whole exterior form to a building. So, the exercise is about finding inspiration and showing just cause for how or why you interpreted something in the way which you did. I am a big fan of Pinterest. You can look at pictures which inspire you and then look back to your model to see if there are similarities, then maybe use you what you like in both to create your 3D extrapolation. So, you can look at your model and then view 3D forms online which remind  you of it and maybe that will lead you in the direction where you need to go. With respect to the material which you use, yarn, ribbon, mesh, or rubber string which is pulled might be interesting. Beijing's Nest Stadium for example is a building which I think could be easily recreated in a 3D format using those materials. Also, sometimes looking at crazy pictures of nature and then looking back at your model may help you.

^ Reaching a new set of lows here

I think the key is to have a concept and use that to justify all aspects of the project. If it has a reason to be in the collage then keep it, if not try to do without it.  The goal of these types of exercises is to see how you follow a set of guidelines and the creativity comes from how you find space within those guidelines to do something extraordinary.

best of luck.

Peter N

Can't we all agree that this assignment is a waste of time?  If a student did this on their own as a step in their method to find a parti and if it helped them actually form their project, great... but to assign it to the class seems like you're going to get a lot of half-baked collages that look really close to the original model and are discarded next week when the new assignment hits.