Three 16'in. And Three 11'in. lava lamps For Sale

I have a huge vintage lava lamp collection I'm looking to trade out for four other 16'in. Colors... or prices are set accordingly. One with clear fluid and black blob Incased In a black colored top and base. In good working condition. Asking $75.00 cash. One "was" a bright Red, but cause it's so old it does not illuminate as bright. Vintage 16in. Lava lamp in good working condition. Asking $60.00 cash. I also have a unique (V) multi-colored 16'in. Lava lamp in good working condition. Asking $60.00 cash. One more Vintage 16"in lava lamp in a sort of light yellowish green. Clear fluid. In good working condition. Asking $60.00 cash. I'm looking to trade them for 16' sized lava lamps in the colors... Red, orange, yellow, blue, and purple. to complete my rainbow display. And for the Three 11in. In vintage lava lamps I have that are in good working condition. It's just the "Blob's" look dirty. But they all still works fine. Asking $20 each 11'in.