How to get a mosaic?

You get the mosaic by merging shrapnel which comes from a broken level 1 vase. Simply leave the level 1 vase (which comes from the drawer) for long enough and it will be able to be broken. You'll need get level 1 shrapnel, and a pouch.

You can also get shrapnel if you finish the water bottle which happens when merging pops (they pop out, no energy is needed but space is needed for them) of leafs from the levels 5 and 6 peony, only 1 leaf will pop from each peony so if doing this you may want numerous peonies... the end result of the water bottles produces a ship in the last bottle which you use an energy to claim the ship, the bottle then leaves behind shrapnel. You do that (water bottle leading to ship) again to produce more ships, merging those to make a large ship which then gives you special boxes which deliver screws and other special boxes for goodies! Then the ship is gone and it feels like a waste of time until you remember you got all those boxes of special things for all your hard work!