創造一間由孩子經營，以自由定價為原則的二手雜貨舖，從如何收集社區二手貨源、設置店面、擺貨、銷售策略，包裝等等，都不僅是個虛擬玩意，不同於台灣兒童館，由孩子做主的虛擬超市購物體驗；又或曼谷豪華商場裡的兒童職業扮演的場景，那裡是沒有勞動工人的角色，草根階層是不存在的。

Elvis的二手概念在玩樂中慢慢顯露，連孩子都不想買二手物，自由地讓孩子定價的想法，自由定價會賠錢，他們反認為可以「自由地」去定價的話就要定高價，賺大錢。

「玩」變換成由收集回來的麥當奴附餐送的小玩具桌上遊戲——在土瓜灣街道佈局棋盤中去送餐，這是社區尋常營生的活動。

Elvis是兩個孩子的爸爸，這樣的玩意設計，顯現他的創意家庭教育的未來計劃。是次二手雜貨舖玩意反映孩童社會文化的根植的消費價值觀，土瓜灣社區棋盤的送外買，亦讓孩子了解勞動如何扣連居民和商店的關係，是社區街道經濟學課的新遊戲。

With the concept of creating a second-hand grocery store operated by children and based on the principle of free pricing, Elvis explored everything from how to collect second-hand sources in the community, set up storefronts, display merchandise, sales strategies, to packaging, etc., It was not only a virtual game, but a child-centreed virtual supermarket shopping experience, which made a difference from the Taiwan Children’s Pavilion or a scene of children playing professionally in a luxury mall in Bangkok where laborers and grass-roots classes did not exist.

Elvis's second-hand shop concept was gradually revealed when play started. The idea of ​​free price system let children set prices was determined to lose money. But even no one wanted to buy second-hand items, they think that they could set a high price and make a lot of money.

"Play" is transformed into a small board game with McDonald’s meal toys – delivering meals in the streets of To Kwa Wan, which was a common scene in the community.

Elvis is the father of two children. The game design showed his future plans for creative home education. The second-hand grocery store reflected the children’s socially and culturally rooted consumer values. The food delivery board games in the community of To Kwa Wan allowed children to understand how labour connected with the residents and shops. It was a new game for the community to learn about street economics.