I had a week’s holiday, and used some of it to make this ukulele. This time I used a wood branding/burning tool to create fret-position markers.
DIY Blackwood (wattle) ukulele
This is my home make ukulele with very thin top wood (1.3mm thickness on average). It is also very loud if strummed vigorously. At the moment I’m playing safe and not tuning it above F Bb D G.
The Backward Ukulele Player 