Reddit mentions of Lawrence Frames Shadow Box Frame with Linen Inner Display Board, 8 by 8-Inch, White

I used about three boxes of this silica gel. You can get it at Michaels too.
Https://www.amazon.com/Activa-Silica-Flower-Drying-Pound/dp/B001H7D0LQ

I did the dry method, so no microwaving the gel, and I left them in for about two weeks. The roses turned out really well but my hydrangea fell apart quite a bit. That's probably because I waited a couple of days after the wedding to do it and hydrangeas are really tempermental.

I used this shadow box and removed the inner insert and frame because the flowers were a little too tall. I just used hot glue to attach the flowers to the frame. https://www.amazon.com/gp/aw/d/B00NASEI8Y

Hope that helps. Good luck!

More info below!:

I used this gel: https://www.amazon.com/Dri-Splendor-Silica-Gel-10233/dp/B077GVZ1ML *I bought 2 bags at a chain craft store, but the cashier only rang up one. I went back in when I realized what happened and they just told me to keep the second bag and thanked me for my honesty. So I had two bags but only paid for one.

This Tupperware bin: https://www.amazon.com/gp/product/B00PG0DUZQ/

And this shadow box: https://www.amazon.com/gp/product/B00NASEI8Y/

The night of the wedding I kept my bouquet in water in a vase. The following afternoon when we got to our “mini moon” Airbnb I set up the flowers in the gel. I put a small layer of silica, then a few flat leaves of greenery, then another layer of gel, then my bigger blooms. For the flowers that were more open, I tried to fill them with gel and then place them in the container on their side so that they’d maintain their shape. Otherwise I mostly laid them face down. This might have smushed them a little flat, but I didn’t mind because that’s how I wanted them displayed in the box. I just did layers of flowers and gel until the bin was full. I’d say it took about half of my bouquet, using all the big blooms that weren’t super super delicate (I just tossed those super super delicate ones because they’d fall apart), and almost all of the tougher smaller blooms. I cut the heads off each flower leaving a tiny bit of stem to use as a small handle.

I let the bin sit for about 2.5 weeks. Then I opened the bin and spooned gel back into the bags it originally came in. I was really careful to do it slowly and carefully so that I wouldn’t damage the flowers. They’re very brittle and delicate, but sturdy enough that I could unearth most of the bloom by spooning the gel around it, then pulling up on the bit of the stem that I left. I dug out all of the flowers before placing them in the box. The annoying thing is that little beads of gel get into the crevices of all the flower petals, so I used a toothpick to fully remove all the beads, but even still missed a few.

Once I had them all out, I arranged them in the box, trying to pack them densely enough that when I moved the box to stand it upright, they wouldn’t shift. I ended up clipping some bits from the other bouquet that I hang dried (upside down, in a room with little/no sunlight, 2.5 weeks) to fully fill it. It was really nice to have that extra bouquet to use for filler so I’m really glad I brought a bridesmaid bouquet home too. Most of my flowers were on the smaller side because I wanted a lot of texture in my bouquet. It probably helped that all of my blooms were on the smaller/shorter side...if you have larger blooms you may need to squash them more, put them on their side, or just use a deeper box.