This is my project and it is a toothpaste squeezer. It is a really simple design and it is also easy to print on a 3D printer.
Step 1: ToothPaste Squeezer! Step 1-4
(1) The first step is to open a new part on SolidWorks.
(2) The second step is to create a rectangular sketch on the front plane (we will dimension this later).
(3) The third step is to dimension this rectangle to the given dimensions: h=0.5in w=1.25in
(4) The fourth step is to do an extruded boss/base feature on the rectangle. Extrude this piece to 1in.