Rope and bone, twig and stone

There is not one single child in Eam'Rel, no matter how high or low, who does not know how to play ribites (short for rope and bone, twig and stone a game that started from the mountain tribes, and expanded like wildfire among the poor folk, who could keep their kids busy and entertained with literally nothing, before it landed on the more privileged children, despite their parents' best efforts to stop them.
Ribites begins when the spring Jadel gives way to the summer Jadel. The following day, kids storm the streets, the hills, the forests, looking for anything that they do not have to break, but is on the ground, free for all. Pebbles, stones from fruit, twigs and dried bones from small animals are the most common ingredients of ribites, but sometimes they end up with unexpected treasures, like old buttons, pieces of rope or even lost coins. Fabrics are not accepted, and neither are things like discarded food that could rot. Adults are not allowed to give items to the kids, and it's also not allowed to cheat and have a secret stash, or look in your own house and garden. These are loose rules, of course, and there are ways to bypass them, but for most kids the joy of finding the tools for the ribites is half the joy of the game.
On the second day, when all the tools have been gathered, the kids walk around with their pouches on a visible place (this indicates that they are in the game) and can challenge each other to play at any time. Two play at a time, and a crowd of other kids surround them (bets from adults are not unusual, especially in Ashar). Anyone might shout an object, or an animal, and the two kids have to create a believable image of that, with whatever they have in their pouches, but as few pieces as possible, since this stash is supposed to last for the entirety of the summer Jadel. The supporters of each kid shout their approval or disapproval and create a proper raucous. In the end, a majority decided which player's creation was best, and that kid gets to take all the materials used.
This continues for the entirety of the summer Jadel. On the last day of the summer Jadel, those who have still materials in their pouches, make whatever they like with all of them - not a single piece can be left out -, and all those weird statues are kept with pride, or are made gifts or, in some places, are given as an offering to the summer Jadel. In old families, one can see whole collections of ribites on display, made by people long dead. And Iccoro d' Atto of Indice, a famous artist, is said to have begun his career by making a ribites of a dragon at the age of 11. Until his death, he would only make art with ribites materials, and each of them inspired generations of artists.