physics musical intrument

<p>ok idk why im posting it here instead of high school life but people over here seem more intelligent so ill post it here</p>

<p>in my physics class we are doing nothing for rest of the year except random projects. my teacher is asking us to create a random musical instrument which can use strings, sticks or keys or anything to basically make sound at different notes.</p>

<p>anyone have any ideas? I dont want to invest lot of time or money into it so something realitively easy would be nice</p>

<p>oh and one of the requirements is you have to play some kind of tune on it</p>

<ul>
<li>Wine glass and water (doesn’t have to be wine glass, just some thin glass cups would do)</li>
<li>Straw (you cut the tip of the straw into a triangle, put a slightly bigger straw over it and you can change tone by sliding the bigger straw)</li>
</ul>