I know there are a few 788T users here and even though I've also posted this on the Sound Devices Forum, I thought it might be of interest here.
Using the 788T for on-location classical music recording, I often must place the recorder on any available table, chair, bench, or church pew. Most of the time that results in the front panel of the 788T being well below my sight-line and I must either periodically raise the front edge during the session to read the time and level displays, or try to arrange a makeshift "lift" for the front usually from an extra battery pack or a bundle of cable (which never works very well). I've tried pieces of packing foam, but those are bulky and don't hold the recorder securely enough.
Since all that is actually required is a stable wedge, I considered building one myself using a couple of flat plates and a piano hinge. However there are various laptop computer "wedges" designed to lift a laptop keyboard to a more optimal level that can be purchased "off the shelf".
After examining several models I found the Aidata LHA-3 Folding Stand
. It's the correct size to support a 788T, it folds completely flat, is very well constructed and weighs less than 600 grams. The Aidata LHA-3 has internal locking braces that allow the stand angle to be set at 20, 23, 25, 35, 40 and 42 degrees to the tabletop. I've used the stand several times and it seems to work well, and only takes seconds to set-up. I'd recommend its use for anyone who needs to raise their 788T for easier viewing.
I expected to need to use a small "bungee cord" to secure the recorder to the stand, but that has not been necessary. The recorder's rubber feet have enough friction to keep it in place with the included hinged folding "backstop". There are a few less expensive plastic laptop stands on the market, but this one seems perfect for a 788T and takes up the least space when folded. This stand is also large enough to work fine with the new SD 664 Field Mixer/Recorder.
Attached are some pics of the stand adjusted for various angles and folded flat: