What's a great craft for preschool-aged kids?
In my opinion there are too many to pick just one. At this age it is about "process not product" the craft should involve as many of the senses as possible, develop fine motor skills while also allowing free expression. It seems like a tall order, but really if the parent or teacher just provides the supplies and steps out of the way, magic can happen. Try combining, kid-safe clay, chenille stems, scissors, paper, glue, scraps and doo-dads and see what happens. Often it is helpful to read a picture book to create a theme. Favorites creativity starting points are Leo Lionni, Eric Carle or Mem Fox. Tried and true arts and crafts are finger painting, rip and tear paper collage, fruit paint prints and play clay. My last advice is to avoid showing adult created examples and have fun!
Open-ended crafts that really encourage exploration and creativity are best for preschoolers. We do lots of arts and crafts, but one that my kids always really enjoy is making playdough. It involves cooking, wonderful sensory experiences (texture, warmth, aroma if you use essential oils, etc.), and when it's finished, you can create with it for months until it dries out.
Craft for preschoolers is all about being creative, trying out lots of materials and exploring with all your senses. It's great to encourage them to give things a try and to enjoy the 'doing' instead of just thinking about creating a prefect or pretty end result. One super fun activity is to get a really big piece of paper, some paint and some items from around the home they can use to print with - yoghurt pots, potato mashers, cotton buds / q-tips, sponge shapes. We did this with a group of kids to make a huge collaborative work of art and they loved it! You can see the glorious result on the link
There are so many you could do! It always depends on whether you are looking for theme specific or just general (to keep them busy). Open-ended art activities are by far the best. Giving them materials they can use alone, such as, scissors, glue, tape, paint, markers,etc to create their own project gives them a sense of pride and also is how they learn! Keeping (free) materials for them to explore with is also important. Items straight from your recycle box! Egg cartons, paper tubes, cd's, water bottles, bottle caps, newspaper, boxes, etc. You would be amazed at what they can come up with on there own.