With orders of $25 or more, Treasures 4 Teachers via Amazon offers the Sharpie Clear View Chisel-Tip Highlighter 12-Pack in Green for $6.50 with free shipping. That's the lowest price we could find by $17. Each pen features a see-through tip.

Note: This item is part of Amazon's "add-on" program and can only be purchased with an order of $25 or more.