Thanks! Happy to :-) Here's the code for this assignment, as well as the pollen.rkt and HTML template/CSS files. (Disclaimer: this was written as code to get something done, not for others to see, so it's not always pretty!)

https://gist.github.com/alex-lew/883ee382a697b39f0f6b49561a0...

By the way, I use Atom, which has an excellent Pollen plugin, to write. Typing '@' then pressing tab turns into ◊{}, with the cursor between the lozenge and the braces.