Sleeping mask + led + 24 hour timer = lucid dreaming device

I found the plan on how to make this a couple years ago and built the machine but i never got the intervals to work for me. I spent about an hour looking for the orignal or mirror post with the directions but i cant find it!
I can only find the more recent versions that sits on the bridge of your nose.

Does anyone out there have a link to the plans or remembers what i am talking about?

There are several plans for dream masks in this big topic :cool: A quite recent one includes a common timer, could it be that one?