I made this fossil playground for the tinkercad contest. One of the reasons I picked a playground is because I like playing on them and then I made it a fossil playground because it would make it look better.

Step 1: Making the Platforms

First, I made a bunch of squares and twisted, resized, and put them in the right spots.
Next, I made poles out of cylinders that I copied and pasted at the corner of each platform.
Lastly, I made the stairs out of three squares that will lead up to the slide.

Step 2: Ways to Climb Up

First, use scribbles to make bones of different shapes and sizes.
Second, stick each bone onto the rockwall in a randomized order.
Now make each bone a slightly different color.
Next, make a bunch of scribbles, each one slightly smaller than the other.
Lastly, stack the scribbles/rocks on top of each other until it reaches the platform.

Step 3: Adding the Railing

First, make a cylinder at one corner of the biggest platform.
Next, duplicate it and move it over a little bit; now duplicate and repeat till it reaches the end.
Repeat that for every side of all the platforms including up the stairs unless you need a gap.
In the second picture notice the opening there, and make the two poles closest to the gap taller.
Last, make a cylinder, turn it 90 degrees, so it is on its side and set one on top of every side with railing.

Step 4: Adding Monkey Bars and a Fire Pole

First, use a scribble to make a U-shape for the monkey bar handle.
Next, turn them so they are standing straight up and attach them to the bottom of the biggest platform.
To make the fire pole, make a long pole that is as tall as the tallest two railing poles we made in the last step.
After that make a tube and adjust it at the top of all three poles so it fully covers the cylinders.
Finally, make a square hole to cut off the part of the tube we don't need.

Step 5: Adding the Slide and Hanging Handle

To make the slide, use a screw thread and adjust it around the pole to make it look good.
Next, make another screw thread and fit it to the outside of the slide as railing.
Finally, use a ring to stick to the bridge by the slide as a hanging handle.

Step 6: Adding Benches, Butterflies, and Trash Cans

First, use a bench shape and set it in front, but not to close to the rockwall.
Second, add a cylinder to a butterfly for the stand.
Finally, to make the trash can, use a cylinder and then make a smaller hole cylinder inside.