Yo-yo is plastic with yellow rims. Uses a yellow plastic finger ring instead of the usual slip knot on the yo-yo string.
Gudetama (pronounced GOO-day-tah-mah) is a Sanrio-invented character that was introduced in 2013. The male character is based on an egg that lacks spunk. He is hard to motivate and has a negative, defeatist attitude. On his official Twitter account profile, he says that he goes through trouble and murmurs every day; he only tweets because "great people" told him to. He believes that some day he will be eaten. He is not always unhappy, as he put a smile on in a video asking people to vote for him. Unfortunately, someone put him down saying that he was desperate.
Gudetama is a play on the Japanese "gude gude" used to describe someone with no energy or strength and "tama" from tamago (egg).