Yes, that's all the advice you'll get from me. I mean, I know how to add an effect to an object and add the slot for it.. but you're talking about a hood object that already has an effect. But that effect has to be referenced in the package somewhere (BHAVs, CRES...) so as long as you know the name of it, try adding the slot and see what happens.
* mustluvcatz waits for Nix to come along and tell her that she has no idea what she's talking about, lol
Wait! What do you mean you don't know how to make hood deco? It's easier than making regular objects. Silly fish.
So far, it sounds like *anyone* can make hood deco. But I'm sure it's really not as easy as that. You can know all about the how and what, but if you have no creative abilities whatsoever, it's quite tough to get something nice going.
That's why *I* am not trying anything like that. And that's also why I am truly in awe of *anyone* who can create *anything* that looks even a *little* more complicated than the bland solid single-color cube that'd come out of *my* hands.
For the most part, as long as you know how to get a mesh into the game (whether you made it or converted it) it's pretty easy to make hood deco - as long as it's something simple enough. It's more fulfilling to make stuff for the actual game though. I think plumbbobs you can pray to or stepping stones that light up are cooler than a new rock for the hood.
I'm not sure how far up you set it - the steam looks like it's coming out of the funnels, but it also looks like it's coming from about 1/3 from the top. I think it's obvious in the picture.