Can we insert items into our Pinboard home page display?

Hi, everyone–
We love the Pinboard theme for our school district news website:

http://www.schoollifetroy.com

Can we insert items into our Pinboard home page display? It would be awesome if we could place announcements and messages in between the recent post boxes, like this:

POST
POST
POST
Remember, school starts September 8th!
POST
POST

We don’t want to create a whole separate post just for a brief 5-word announcement. Is there any way to do this?
Many thanks,
–Ed