Chris Bray has created a very useful page with manual bookmarklets for all the major sites, including Tumblr, Facebook, Google Reader and more. I’ve created this one for myself, for a Pinterest bookmarklet.
From Chris Bray:
1. Add this page as a bookmark
For more detailed instructions, check out Marco Arment’s step by step guide for adding the Instapaper bookmarklet to Safari for an iPhone, iPad, or an iPod Touch. You can use the same method here.
Here’s a big image you can test your new bookmarklet with:
I can’t imagine this can break your iPad, but use at your own risk.