Irish Spring and a cheese grater. Apparently squirrels hate the smell of the soap, so they'll stay out of your garden. as well as deer and mice. Rather than grate it, I cut chunks of Irish Spring soap.
Glass Beads Dance in Your Garden It's hard not to smile when you see these sparkling Dancing Garden Jewels bobbing and swaying in the breeze. The multicolored glass beads are strung on flexible, stainless steel wires. "Plant" them anywhere in your garden.
Cute idea: birdhouse chandelier made from Goodwill chandy and unfinished birdhouses from Michaels. Just hit the whole thing with white spray paint and hung on tree in back yard. In between birdhouses are tea cups and saucers for seed or water.
I had a couple stem broken wine glasses. Use dollar store stemware or repurpose broken stemware. put glass down in plant and place a candle inside, use a citronella to keep bugs away or battery operated of children are around.
Log Bird Feeder - 23 DIY Birdfeeders That Will Fill Your Garden With Birds (my note: I haven't looked at all of these, but at least one is a terrible idea. The window birdfeeder -- birds could fly into the glass and hurt themselves.