Ideas, Ideas, Ideas!

I'm still unsure about what problem I want to solve, but I am thinking about a few. Currently, I'm brainstorming about different problems that I could try to help fix.

My current ideas for products include:

• A means of detecting and noting locations of trail blockages by allowing hikers to mark locations of potential blockages.
• A simple and cheaply replicable musical instrument that is easy to play, but can produce a wide range of sounds.

Not a long list, but my I'm still brainstorming about what to work on.

Currently, I'm leaning towards the musical instrument/s.