I got a cajon bag for when we play at a friend's place.
Something like this fits GH and the additional accordeon folder etc. nicely without being vastly overpriced.
I have the iron cobra double pedals on my Roland TD-17 and I used these Gibraltar beaters to help with noise reduction. They should help this issue and they really cut down the noise, but have the same results for E-drums as a normal beater.
Good, cheap, fun!
Strongly recommended
Meinl VivaRhythm VR-CAJ2GO Fold-able Pop Up Cardboard Cajon-2-Go with Internal Snares
I have a cajon that doubles as a nightstand, extra chair, foot stool for reaching high things. Then every once in a while I remember its a drum and jam out! Good purchase.