This plugin gives you an extra bookmarks bar
Go to the settings page for the extension and add your extra bookmarks. The bar will be on the bottom of the screen. Click the X to the right to temporarily close it.
Please note that there is currently no way of making an additional bar that is exactly like the one that is already in Chrome.
Send feedback and feature requests to firstname.lastname@example.org and I will certainly consider it (and implement it if it is at all possible).