A while back I saw someone mention using a tea ball at the end of the dip tube, I have had pretty good success with it even with pellets.
http://www.amazon.com/dp/B004X4LGIO/?tag=skimlinks_replacement-20
Found it:
https://www.homebrewtalk.com/f51/10-stainless-diy-hop-blocker-289349/
I also went with the walmart/target wire shelf. However, I went with two of the smaller three shelf racks. I use one of the shelves to store stuff and also use it to hold equipment while brewing.
Haven't tried them, but you may want to check out the good folks over a taphandles.com. The handles are a bit cheaper there and great customer service. http://store.taphandles.com/collections/changeable