I created my own large dot impression plate using a circle die, chipboard coasters and some cardboard for backing (see pic below). Some die cutting in silver and copper foil and a heat embossed sentiment and your done.
As you can see I drew a grid to help in placing my circles onto my backer. Unfortunately I miscalculated where to draw my lines and I ended up using only the horizontal lines for placement and just eyed up the vertical spacing.
Stamps - Stylish Sentiments: Birthday (PTI)
Dies - Spiral Notebook (PTI), bow (Lil Inkers), Classic Circles (Spellbinders)
Paper - Stampers Select White (PTI), silver and copper foil CS (DCWV)
Ink - VersaMark, Black EP