I've seen this kind of thread on other forums and they're usually kind of popular. They allow people to show off what they're doing even if they don't need help or if it's not worthy of a thread in itself.
In this thread you can post screenshots, code excerpts or other forms of outputs of stuff that you're working on or you can engage in discussion about something someone is working on.
Disclaimer: Please take note of the forum this is located in, Designing and Development, meaning that if you wish to show something off it must be in some way related to coding or web design. Also to ensure this does not devolve into a fast thread can you please avoid responses such as "That's nice" or 'Wow! Cool', please attempt to give some kind of feedback or criticism if you are not submitting something you're working on yourself.
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I am currently working on Habbox.com V7's Rare Value search system, it's mostly complete now, though without a UI at present.
It's a massive upgrade to the V6 search system, besides not starting searching before you finish typing it's going to support a variety of additional features. Instead of searching by just name you can also search by value, release date, motto, tags and various other aspects and you can also sort by pretty much anything.
It's built on top of Sphinx Search which apart from making it much easier to code than using MySQL full-text search, it also makes it lightning fast. The forum already uses it for search.
Just to break down the following query, it is searching for any furni which:
Has the word 'throne' in any of it's name, motto, category or tags.
Does not have the word 'royal' in it's motto.
And the results are sorted by their names descending.
Unfortunately I can't show off anything fancier as the DB isn't yet populated with data such as value.