I just want to second the recommendation to contact Ray for a combined shipping quote.
I used the online contact form to tell Ray exactly the items (put in links from the PM) and qty of each ... and indicated diylightanimation specs for these items (just to be sure). He got me a quote back (overnight) with a custom link to buy and saved some on shipping.
It appears the larger your order, the more you might save on shipping. A few members with $2000+ orders have reduced shipping to around 10-11% of subtotal ... and mine being a smaller order was 16% ... but better than the 21% I had in my shopping cart. Used DHL on everything.
It appears for those order a lot of smart strings and/or rigid strips ... your really would want to get a quote like this.
He usually just puts a image of one of the items into your custom page, and marks it as a free shipping item, but the shipping just gets itemized into the subtotal, so it appears your buying one combined item with free shipping.
I have also found that sometimes your invoice has pictures (of all items) and sometimes does not. I'm just a little worried, since his invoice doesn't show enough detail to verify whats what on my order, so I'm asking him to add more detail. Not sure why mine was more abbreviated than others, but its just not making me secure in pushing the order button till its clear.