喜喜歡歡

喜 = 壴 + 口 : Mnemonic symbol: 喜宴, wedding banquet.

Marie Curie is overjoyed to announce her marriage in the space station. She improvised a wedding banquet with nothing but mandarins and notifies everyone by beating a large drum very quickly with two mandarins.

欢 = 又 + 欠 : Helga Horse has not been boxing for a long time and is overjoyed to find a pair of boxing gloves just in front of the anthill. Not thinking twice she picks up the gloves and rushes to the next fitness center, leaving an IOU note behind for the owner of the gloves to find.