I'm getting a sense that you are looking for a new toy, but if your only issue is the color, I looked around a bit and saw that frosted acrylic can be painted. Maybe you could just have the plinth painted black?
https://www.acmeplastics.com/content/how-to-paint-on-frosted-acrylic-plastic-panels/#:~:text=The%20best%20kind%20of%20paint,sponge%2C%20to%20name%20a%20few.
https://www.acmeplastics.com/content/how-to-paint-on-frosted-acrylic-plastic-panels/#:~:text=The%20best%20kind%20of%20paint,sponge%2C%20to%20name%20a%20few.