I can relate to mini blinds disappearing. I actually saw a bluejay take one. Would not have believed it if I hadn't seen it. When I replace my markers on my named plants. I save the old ones for my seedlings and just make a new p touch label and put it over the old label. I am currently replacing my markers with the Kincaid stainless steel because they are so much more sturdier than the others. The ones I have replaced made it through the winter without bending or disappearing.
