Pine Cone Mulch - an attractive border and maybe a practical way to keep dogs and cats out of your garden beds. As they breakdown, they will add nutrients to your garden too. Pine cones also look great as a decorative mulch for container gardens.
Cover your trampoline springs with pool noodles. I was pinched in springs so often when I was a kid. This is safe and looks awesome. Now I just need a house with a garden to put my pool-noodled trampoline in.
Self made chair, made completely from old pallets. Recycle upcycle reclaimed wooden garden furniture DIY Re-purpose those pallets that are destined for the dump. pallets into furniture, garden beds, you name it.