If you have not already decided on the subject of your creative arts assignment you might consider linking it to one of your formal writing assignments.
Environment:
A photo essay about nature or some aspect of the environment (either positive or negative).
A collage expressing your feelings about an environmental issue which concerns you.
A painting, sculpture or musical composition which expresses how you feel about the environment.
Etc., etc., etc. Be imaginative!
My House On My Street:
A photo essay of your home, family and neighborhood linking them to The House On Mango Street.
The architecture of your house/apartment as a "home" or living space for your family. Include photos and discussion of how the space is used for living and family identity.
A painting, sculpture, or musical expression of the above themes.
Etc., etc. etc.
Remember that I would expect a brief explanatory text to accompany your creative arts project. Also remember that the creative arts assignment is separate from the formal writing assignments. They can be linked but they should be two different presentations. Finally, remember that you can completely ignore the above suggestions and do something relating to any theme of the semester that you wish. Good luck!