Workit timer sound: Meow by Dan Crosby (Dcrosby), recording of his cat Silas.
Source: https://commons.wikimedia.org/wiki/File:Meow.ogg
License: Creative Commons Attribution-ShareAlike 3.0 Unported
https://creativecommons.org/licenses/by-sa/3.0/

Workit's meow.wav is converted to mono 44.1 kHz PCM WAV with loudness
normalization. This adapted sound is distributed under the same license.