They are all simple household items that can be used as marvelous teaching tools. Object lessons can be drawn from the most common items -- easily obtainable and of essentially no cost. The best teachers do not need fancy visual aids or elaborate hand-outs. They tend to draw attention to whatever is handy and make it an OBJECT LESSON. The Master Teacher, Jesus Christ, used the things in the everyday world to teach. "Consider the lilies of the field" was certainly an object lesson drawn from what the people could see as they sat on the side of the Mount.
I wonder at the time and expense some Primary workers go to in order to prepare their lessons. Yes, a good picture and a well-delivered story are important, but the endless hours of coloring commercially prepared artwork or assembling elaborate handouts are probably not so important in the grand scheme of things. In my experience, most handouts for school-aged children get turned into paper airplanes or end up in the trash long before they are shown to parents or hung on the refrigerator door. If you are going to invest time and money in lesson preparations, one of the best investments would be in a book helping you learn how to use simple household Objects as Teaching Tools. Acquiring the knack of drawing from the common experience of the audience using everyday objects can be very powerful and stick in the minds of the learners.
Teaching songs in Primary might occasionally require word charts of some kind or a fun game, but no amount of fancy, elaborate and expensive visual aids will make up for the lack of good teaching strategies. And good teaching strategies do not have to cost a lot in either time or money after the initial investment in learning the skill is made. If I were a new song leader in Primary, I would spend my time memorizing the songs and learning musical skills and pulling out ideas from the songs that would teach the gospel and help ingrain the simple doctrines into the minds and hearts of the children. I would look for opportunities to model good singing and allow the words and music to be indelibly etched into the very fabric of the children's lives. Helpful in that quest is the use of simple everyday objects as teaching tools whenever possible. A commonly seen physical object can powerfully ignite a memory and bring the words and melody of a Primary song or hymn instantly to mind.
Simply holding up an object that seems to have no relevance to the topic can start the curiosity juices flowing. It can grab attention and extend it as the teacher asks questions to guide the thinking or listening of the group. There are many types of conclusions that could be drawn from and lessons that can be taught through the use of everyday objects. Having a collection of ideas is a great investment.
Some useful hardcopy sources are:
A Children's Songbook Companion by Pat Graham and Trudy Stewart and others
Our Children's Songs by Virginia B. Cannon (may be available on Amazon or other online stores)
Object Lessons Made Easy by Beth Lefgren and Jennifer Jackson