Diy Plant Protector . 12 diy plant cages and supports. We earn a commission if you make a purchase, at no additional cost to you. [DIY] Protect your plants with this easy possum shield! 1 Million Women from www.1millionwomen.com.au 12 diy plant cages and supports. The easiest way to make your own plant collar is by using empty toilet paper tubes or paper towel rolls. Remove the covers in the morning after the frost has thawed.