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.
PVC Sprinkler Water Toy - how smart is this? 10 bucks worth of materials from the hardware store will bring lots of joy this summer. :) TWIST use a couple of pipes and plastic streamers as well, call it a "car wash" and ride bikes through it.
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.
Small Space Tiered Planter - For small spaces and gardens, it's important to go vertical. When space is at a minimum use vertical tiered planters to maximize a small balcony or patio and create a lush corner of plants and flowers.
Coffee can planters --cheap idea for planters. Similar to the one where you screw a coffee can to a post to keep your garden trowel and gloves in and then put the plastic lid on to keep them clean and dry
FINALLY - a use for all of those toilet paper rolls that Dave keeps. Recycle Toilet Paper Rolls For Organizing DIY if you are in a financial pinch or just want to be crafty. perhaps wrap in some stiff paper for more support