Programmers, how do you make assets?

There are 3 tiles I used for my game.

saas.jpg

Link to game: https://ldjam.com/events/ludum-dare/51/cockroach-hooray

There are Lamp, Regrigerator and ????. Can you guess what is "????"?

I don't know how to draw and even worse I'm at making music (that's why there is no sounds in my game lol).

Are there anybody who struggles with that? What hacks do you know and use?