Paper, paint, cardboard and string. Nothing here needs a craft-store trip, and every one comes with a mess rating so you know what you're in for.

Cover the table before you open anything. And if a step says grown-up, it's about the sharp thing or the hot thing, so wait for them.
Wet paint, a shake of table salt, and by the time it dries you've got a night sky full of stars you didn't paint. It looks like a trick and it's really just salt being thirsty.
One index card, ten folds, and a frog that actually jumps when you press its back end. Make two and race them across the table.
A cereal box body, a tissue box head, toilet roll arms and whatever bottle caps you can find. No two ever come out the same, which is the whole point.
The classic diagonal-stripe bracelet, with one knot to learn and nothing else. Once your hands know it, you can make one during a whole movie without looking down.
Paint a rock, write something kind on the back, hide it somewhere public and never find out who found it. That's the whole game and it's better than it sounds.
Fold a paper plate in half, cut a zigzag along the fold for the plates on its back, and the rest of the dinosaur is just paint and a couple of cut-out legs. It stands up on its own.
20 minNeeds a grown-up for part of itMake soft, blue slime that feels like a tiny cloud.
25 min+ a few hours to dryPaint the two Blue Water Bridge spans with puffy, cloud-like paint.
20 min+ overnight to dryWatch coloured water travel along salty glue waves.
30 min+ 1 to 2 days to dryShape little fish, waves, beach stones, or lighthouses to keep.
30 minMix a few colours and make your own waves, boats, and lake creatures.
35 min+ an hour to dryScratch through black paint to reveal a bright Lake Huron sunset.
30 minNeeds a grown-up for part of itBuild a paper wave that glows when the sun shines through it.
40 min+ glue dryingNeeds a grown-up for part of itBuild two different bridge shapes over a blue cardboard river.
35 minMake a little lighthouse with a bright light and blue waves.
30 minNeeds a grown-up for part of itTurn yarn into a tiny owl, squirrel, or another Canatara Park animal.