Old calculators

I have more calculators accumulated over 30+ years than I'll ever play with, so would like to find new homes for a few. http://i1181.photobucket.com/albums/x426/DrCharlesMorris/PA030021.jpg -RadioShack EC-220 (Cat No 65-604). Working. -Unitrex "Memory-8". Missing battery compartment cover. Working. -Commodore MM2 "Minuteman 2". Not working. Comes with wall wart. -TI SR-51-II. Not working. Several years ago I put new nicads in the battery pack and it worked then. With case, wart & manual. -Unknown mfg. "4-banger" with LCD display and incandescent backlight. Works but has air bubble partially obscuring LSD's 2/3. This one was written up in "73 Magazine" in the late '70's or early '80's and was available from Meshna, Poly Paks or a similar surplus place. Would like to get $10 for all five, plus shipping from US zip 65775.