I need a few new ties...

I've been wearing more neckties again this year, something about trying to be good and work with the culture plan in the hopes that the situation at work can get better. So, I'm on the lookout for a few new ties...

I want but am to cheap to pay for some new chemistry ties like...

This one...

This one...(really want this one)...

This one...

This one...

This one...

This one...

This one (and in red, too)...

I already have a few novelty science-themed ties...

• DNA double helix (actually, I have it in blue)
• museum artifacts in yellow (and in maroon and in navy)
• atoms in blue
• chemistry novelty tie (had it, got cream pie all over it, ruined it)

And there are a number of science-themed ties that don't do much for me, just kind of meh...

• burgundy experiments
• navy blue elements
• most everything from zazzle
• Trust me, I'm a chemistry teacher
• white periodic table 
• navy blue periodic table
• black lab
• blue periodic table
• structure of the atom
• black periodic table
• elements & symbols
• test tubes