This is a 1970s retro "future" space station idea by NASA (thus safely public domain). It's a rather odd idea, but I guess the ring is suppose to rotate around the shaft to create gravity. <br/>未來空間站<br/>construction、future、NASA、planet、platform、retro、scifi、shuttle、space、space station<br/>施工、未來、NASA、行星、平台、復古、科幻、穿梭、空間、空間站<br/>資料來源：openclipart ( https://openclipart.org/ )

This is a Top Whorl Drop Spindle made of wood. It is used to spin wool and other fibers into yarn.<br/>Top Whorl Drop Spindle<br/>Drop Spindle、fiber、fiber art、spinning、Top Whorl、wool、yarn<br/>掉落主軸、纖維、纖維藝術、紡織、頂部螺紋、羊毛、紗<br/>資料來源：openclipart ( https://openclipart.org/ )

Anthropomorphic Potato Holding Sign<br/>擬人化的土豆舉行標誌<br/>Anthropomorphic、Boy、Friendly、Happy、Male、Man、Potato、Sign、Smile、Source+Pixabay、Starchy、Vegetable<br/>擬人化、男孩、友好、快樂、男、人、土豆、標誌、微笑、來源+ Pixabay、澱粉、蔬菜<br/>資料來源：openclipart ( https://openclipart.org/ )

Colored<br/>繡球<br/>biology、black_and_white、botany、externalsource、line_art、outline、plants、psf、remix 175467、wikimedia_commons<br/>生物學、黑與白、植物學、外部源、線條藝術、大綱、植物、PSF、混音175467、維基媒體公地<br/>資料來源：openclipart ( https://openclipart.org/ )

Simplified icon of female graduated student with graduation hat<br/>畢業的​​學生<br/>college、Comic characters、education、graduate、graduation hat、school、university<br/>學院、漫畫人物、教育、畢業、畢業帽、學校、大學<br/>資料來源：openclipart ( https://openclipart.org/ )

Watermelon <br/>西瓜<br/>fruit、picture、red、upload2openclipart、watermelon<br/>水果、圖片、紅色、upload2openclipart、西瓜<br/>資料來源：openclipart ( https://openclipart.org/ )

A palm tree.<br/>棕櫚-01<br/>flora、landscape、landscaping、nature、paisagismo、palm、palmeira、plant、tree<br/>植物群、景觀、美化、性質、美化、棕櫚、棕櫚樹、廠、樹<br/>資料來源：openclipart ( https://openclipart.org/ )

Classic nativity scene with Jesus, Mary and Joseph.<br/>經典誕生<br/>Christ、Christmas、Jesus、Joseph、manger、Mary、nativity、Semi-Realistic People<br/>基督、聖誕、耶穌、約瑟夫、吃、瑪麗、耶穌誕生、半現實的人<br/>資料來源：openclipart ( https://openclipart.org/ )

Get in the choppa!!! Inspired by soundcloud.com/arthur23/fortunate-son-creedence-2<br/>斷路器<br/>Bell UH-1、cartoon、choppa、helicopter、inkscape、low poly、military、svg、vector、vietnam、war<br/>貝爾UH-1、動畫片、斷路器、直升機、Inkscape中、低聚、軍事、SVG、向量、越南、戰爭<br/>資料來源：openclipart ( https://openclipart.org/ )

NPS<br/>NPS地圖像形文字第96部分<br/>hiker、hiking、icon、map、pictograph、symbol<br/>徒步旅行者、徒步旅行、圖標、地圖、象形文字、符號<br/>資料來源：openclipart ( https://openclipart.org/ )