Mmm... I mostly see nightmares, so I totally wouldn't like to make anything from them real.
There are also some dreams of curiosity, where I investigate different imaginary secret or abandoned buildings or underground structures. I either try to find something in them, or just to understand the purpose of these constructions. These buildings always have very weird architecture and also sometimes contain different technical devices, which remind ones which I've seen on different jobs, but mixed up in twisted ways. So they are very mysterious.
I mostly enjoy those dreams, but they still have a bit anxious vibe in them. And sometimes they still turn into nightmares - for example, I can be killed by the guard of the building, or be frightened by various anomalies and scaring things of all sorts so much, that I'm trying to suicide to exit the dream.
But yes, sometimes I would be curious to extract weird devices from these dreams and investigate them in the reality.