Follow these if you have no objection!
If you don't find no site that fits for your question, then yes! Propose it there. By going to area51 and first searching, nothing found go the category and at the end of the page propose for it and tell them the required information.
You can tell about this in
That was the only site that I found from the current sites here: http://stackexchange.com/sites#traffic, so that leaves one option to propose for it.
What else you can do:
You can support the proposal that is already present there, this way the more you support and the more it gets popular, the sooner it will get public! And you'll get a chance to ask the question to the site of your choice. Untill then you'll have to wait or you'll have to meld the question in a way that it fits the site terms.
Otherwise you can change the question and ask it to a relevant site, for example you can ask for a good decoration for a box in bedroom! Don't mention the jewelary thing or the wood.
Hope it helps.