I recognised some of the titles highlighted on the page, and found others to follow up, for the school library and for me. (The image above is a screenshot - click on this link to go to the page and see it in readable detail).
The Wikipedia article on Steampunk is another place to start - not only the content, but also the links. One of the footnotes, for example, takes you to this article from How Stuff Works, canvassing the genre and steampunk art/craft works/creations.
Searching the handmade craft site (beautiful beautiful things!) Etsy.com with the keyword 'steampunk' yields over 70,000 pieces of jewellery, clothing and more reflecting the steampunk aesthetic (as this screenshot demonstrates - what you see will vary constantly as items are sold and new items listed).
PS. If you narrow your Etsy search on steampunk to the most expensive items in the 'geekery - weird' category, you get some corkers.
I think the wall tentacle is my favourite. Wouldn't that be a talking point in a school library??? (hmmm, would need to be on a high wall so it didn't put a student's eye out...!!)