Mr. UB has weighed in, and in his (inimitable) words, "The second one looks like a box of Kleenex exploded."
So, as a general service to a) E. , who asked; b) anyone out there who's thinking of making these; and c) any of the parental units who're contributing to our budget who happen to see this ... the cost break-down per unit is:
styrofoam ball: $1.54 each (as pack of 12, from this eBay seller)
seam binding: $2.10 ($0.30/yd, bought here on Etsy)
craft paper: about $1.79 (at Michael's)
pearl head pins: about $1.25 (at Michael's & Moskatel's)
craft punch: $4 (at Michael's, with coupon)
Total = approx. $6.68 plus pro-rated cost of the craft punch (tbd at the end of all this nonsense; currently $0.66/ea.) = approx. $7.35 per pomander.
Which I maintain is still quite a bit more economical than the average "real" flower pomander. If you have evidence to the contrary, please comment & let me know!