Right so I bought a cloudstrike box (i think thats what its called) today and want to convert them into fire prisms...the problem being that the actual prism pieces are now unavailable to order in GW and the staff were less than helpful with conversion ideas.
Ideally i'd put them were the falcons guns would be, but I need ideas on what would be a good prism-like shape substitue.

Any ideas out there?

WH40KAj