I built my grandson a Lego play table for christmas, simple Baltic Birch design. It's sized to have 6 - 10" x 10" Lego base pads on top in a 20" x 30" rectangle. How would you secure the base pads to the top? My plan was to use Lego blocks to hold the 6 pads together and in allignmet with each other, apply a liberal amount of 10 epoxy to the back of the pads, place it on the table and lay a sand bag or two on top while it dries.

Any better ideas? Maybe my question really boils down to the effectiveness of epoxy to bond fairly thin plastic to baltic birch with a thin spray of poly on it. Anything better?