This model was a collaboration with Colby from FORGECORE! Check out his Thangs Page Here
To make the pens, order the Pilot G2 Gel ink Refills: . You'll just need to insert them into the Pen shoot, and give it a few strong taps on a table to get them seated.
To make the highlighers, order the Sharpie brand pocket highlighters. Take it apart, and insert the tip into the highlighter shoot, and jam the ink sponge down into the shoots. Make sure you jam it down all the way, or the tip will dry out.
For the Post it notes. Just use any accordion style post it notes. Like these