Building a circuit? - easy high school project sorta

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To build a circuit that causes a lightbulb to flash on and off, a 555 timer or a 741 op-amp can be utilized as they are suitable for creating oscillating circuits. A capacitor may also be effective when configured correctly. The project requires a creative approach since pre-made solutions are not allowed. Using a signal generator could be another option to explore. Understanding these components will help in successfully completing the assignment.
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building a circuit?? - easy high school project...sorta

Ok so my teacher just walks in one day (w/o any syllabus or assignment sheet) and tells us to build a circuit that would cause a lightbulb to flash on and off. He specified that the cicuit can't be made by buying something that was specifically designed to do this. According to him an oscillator and a timer is ok...i have no ideas what these are. I've been looking up oscillating circuits on google and it seems a bit too complex even for an AP level class. Can any help me get jumpstart on an idea (or just tell me what type of circuit one would build for this project) because I have no previous background on this at all
 
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Try a 741 opamp or a 555 timer. Go from there.

I think that maybe a capacitor would do it in the right configuration too.

Can you use a signal generator?
 

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