DIY Treasure Rocks That Will Amaze Kids

Wow your budding archaeologists and create treasure rocks with toys hidden inside using this handy arts and crafts idea.

You will need

Toy plastic dinosaurs, seashells and plastic gems (you could also use other toys, such as plastic coins and plastic figures)
380g plain flour
190g rock salt
190g leftover dry coffee grounds
350ml cold water
1 ½ tbsp black poster paint
Silver glitter
PVA glue and paint brush
Wooden spoon
Large mixing bowl
Chopping board
Oven gloves
Baking tray and wire cooling rack
Toy hammer and toy chisel (optional)

Makes six rocks. Make sure children are supervised by an adult when doing this activity.

how to make treasure rocks ingredients

Step 1

In a large bowl, mix together the plain flour, rock salt and coffee grounds with a wooden spoon.

Then, mix the poster paint in with the water and slowly add it to the dry ingredients while mixing to form a loose dough.

how to make treasure rocks step 1

Step 2

Divide the mixture into six parts and roll each one into an egg shape. The mixture makes six rocks, but you can halve the quantities to make three, or double to make 12.

how to make treasure rocks step 2

Step 3

Gently press a small toy into each egg shape (we’ve used a seashell, a toy dinosaur and a plastic gem).

Ensure each toy is roughly in the centre, then push the dough over the top so it’s fully encased with no cracks.

how to make treasure rocks step 3

Step 4

Place the rocks on a non-stick oven tray and bake in an oven for two hours at 160℃ in a fan oven or 180℃ in a conventional oven – perfect if you already have the oven on for cooking your dinner.

You can also air-dry the rocks for a couple of days until solid.

how to make treasure rocks step 4

Step 5

Using oven gloves, remove the baking tray from the oven and place the rocks onto a wire rack to cool down.

Tip: If you have small children, gently crack open the rocks when they are slightly warm, then push them back together again – doing it at this stage will make it easier for young kids to break open.

how to make treasure rocks step 5 new

Step 6

Once the rocks are completely cool, brush them with PVA glue and coat in silver glitter.

dino rocks coated in glitter step 7

Step 7

Now for the fun part – let your budding archaeologists chip away at the rocks using a toy hammer and chisel or on the ground in the garden, to discover what treasures are hidden inside.