I wrote another blog on how I grew oyster mushrooms on newspaper.
Another way I grew them was on torn up pieces of cardboard in an ice cream container. This method was fast, but the mushrooms were small and it was difficult to keep the right amount of moisture in the cardboard. It would have been better to use a larger container and have some holes in the sides of it. I didn't think to take any pictures of this.
Days to Maturity Oyster mushrooms on cardboard
27/06/2017 damp cardboard inoculated with oyster mushroom stems Day 0
01/07/2017 noticeable mycelium growth Day 4
16/07/2017 cardboard fully colonised, more added Day 19
24/08/2017 fruiting (about 2 months) Day 58
28/09/2017 fruiting again Day 93