There used to be more dakimakura covers by Popolocroits of original characters and one of Shinobu from the 4th episode of Nisemonogatari but they've been scrubbed off the website. They are probably lost media now.

bussinessinformatics said:

There used to be more dakimakura covers by Popolocroits of original characters and one of Shinobu from the 4th episode of Nisemonogatari but they've been scrubbed off the website. They are probably lost media now.

I just checked, the covers are still on there just hidden. If you go to the mix-and-match part of the website you can enter the SKU for the NSFW cover and view it that way. The NSFW version of this art is 2058B for example.
It's a bit harder with covers that don't have a still existing SFW version, like the Shinobu one, because SKUs don't seem to be saved in the wayback machine but someone probably has a list of them somewhere.

Edit: I was being a bit dumb, wayback machine does show SKUs. The Shinobu dakimakura is 1125 and 1126

wispydreamer said:

I just checked, the covers are still on there just hidden. If you go to the mix-and-match part of the website you can enter the SKU for the NSFW cover and view it that way. The NSFW version of this art is 2058B for example.
It's a bit harder with covers that don't have a still existing SFW version, like the Shinobu one, because SKUs don't seem to be saved in the wayback machine but someone probably has a list of them somewhere.

Edit: I was being a bit dumb, wayback machine does show SKUs. The Shinobu dakimakura is 1125 and 1126

Crazy how even new releases now have versions only visible through this method. I would have lived the rest of my life in ignorance if not for you since there doesn't seem to be any other way of knowing this. Now I enter in SKUs like boomers tapping slot machines.