In November last year, I was having fun adding things to engobe. Here, there is combination of quartz sand, brick powder and glass splitters.
I love how glass splitters melts with so many bubbles and the bricks into a shiny brown layer. You can use this little one to keep your tea bag after infusing it.
 
Black stoneware, textured engobe, burnt at 1230°C
6,9 x 6,5 x 3,3 cm
45 g