Use thimbles, thumb-pots, miniature vases.
Pools
These can be built with Sakrete or plaster of Paris. Or sink a sardine can—painted blue-green—an ash tray, soap dish, or plastic cheese container.
Paths
A path should always be going somewhere, preferably to the point of interest. Make paths with sand, fine gravel, small pebbles, perlite. If your garden is a formal one, make cement sidewalks with Sakrete. (Please, we have no financial interest in Sakrete—don’t even know who makes it—but have always found it a most useful material around our gardens for patching, fixing, and repairing.)
Bridges, Fences, and Gates
Here is another chance for your personal ingenuity—and the more ingenuity you use the greater will be your pride when the job is done. Use matchsticks, toothpicks, balsa wood (it is available in hobby shops, but you can very likely snitch a few pieces from some model airplane the kiddies are making). In my office I get coffee from the corner drugstore, each container having a stirring stick. I save those sticks. It is wonderful what one can do with them—picket fences and the like. A little whittling is all that is necessary.
Rocks
Please, don’t use chunks of broken concrete. Hunt around for smooth, interesting specimens, eroded and rounded stones of the correct size. If you happen to come upon one with a lichen, you have a real prize.