"Reimu can't take it easy! So mean!! Let Reimu take it easy!!"
(She didn't notice that the walls have started moving...)
"By the way, this is made with fortified acrylic boards, so even the dos-spark from Marisa will have no effect. Also, there's special light refraction built in so that even Udonge's lunatic eyes, and Mokoto's flames will have no effect. "
>By the way, this is made with fortified acrylic boards
Too much effort for something like this. Concept is definetely fun, but it will cost way too much while using materials like these. DOS marisas with sparks, udonges and mokous are really rare (as is any yukkuri who can provide somewhat solid resistance), so few of anons who would want to deal with them can just buy something other.
^Maybe DOS would want to free yukkuri from this machine, so to prevent this it's made DOS-proof. But either way, owner of the box would probably be not DOS-proof, if it's spark can destroy some metals.
You know how all those infomercials always have some crap about how "this glass is made so that it can resist ____"? I'm guessing its just a sales pitch here too.