Based on the Harrington font first posted here by dkonz01.
字母13，字母E.
alphabet、bookami clip art、capital、font、Illuminated Font、letter、lettering、text、typeface、typography
字母、剪貼畫書、首都、使、發光字體、信件、刻字、文本、字體、活版印刷
資料來源：openclipart ( https://openclipart.org/ )

This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain.---See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher
鷯哥
animal、biology、bird、externalsource、grackle、line art、ornithology、outline、psf、wikimedia commons、zoology
動物、生物學、鳥、外部源、鷯哥、線條藝術、鳥類學、大綱、PSF、維基媒體公地、動物學
資料來源：openclipart ( https://openclipart.org/ )

A set of arrows forming a tree
箭樹
arrows、remix 241517、tree
箭頭、混音241517、樹
資料來源：openclipart ( https://openclipart.org/ )

While looking for something else, I found this great public domain image to synthesize. I cleaned it up and I present it here. I hope the guy survives his operation! (This scene reminds me of that American TV show MASH for some reason)
醫生的操作
Advanced Practice Nursing、cut、doctor、hospital、medicine、nurse、operate、operation、patient、Semi-Realistic People
高級實踐護理、切、醫生、醫院、醫學、護士、操作、手術、患者、半現實的人
資料來源：openclipart ( https://openclipart.org/ )

United States Flag
美國國旗
Others
其他
資料來源：openclipart ( https://openclipart.org/ )

From a public domain drawing on Wikimedia Commons
篩
cook、cooking、kitchen、sieve、utensil
廚師、烹飪、廚房、篩、用具
資料來源：openclipart ( https://openclipart.org/ )

from the Washington Herald 1921
男子指著和衝擊
man、point、pound、suit
人、點、磅、適合
資料來源：openclipart ( https://openclipart.org/ )

Simple shapes with a pattern
復活節彩蛋|復活節彩蛋
rimanalogi、SVG pattern
rimanalogi、SVG模式
資料來源：openclipart ( https://openclipart.org/ )

Calendar 2016
2016年日曆
2016、calendar
2016、日曆
資料來源：openclipart ( https://openclipart.org/ )

Colorful Abstract Circles Christmas Tree 3
五顏六色的抽象圈子聖誕樹3
Abstract、Christmas、Chromatic、Circles、Colorful、Line Art、Prismatic、Rainbow、remix 236780、Tree
抽象、聖誕、色、界、華美、線條藝術、棱柱、彩虹、混音236780、樹
資料來源：openclipart ( https://openclipart.org/ )