I think it's smaller than you want, but Lovehoney.com has a plug with 2.5 inch diameter (7.5" circumference). It's 100% silicone, firm like a Tantus toy ("Shore 10" I'd guess), and has an opening in the base to insert a bullet vibe. It's made for/by Lovehoney (Lovehoney house brand) and it's only $20. Paired with a WeVibe Tango bullet vibe (for $80) it's a pretty nice toy, in combination! The flanges on the base are actually a little too small (IMO) and for some people there's a small risk the toy could slip inside, so it's not a toy you can ignore, you should pay attention to what's happening when you have it inside you. (The Tango is expensive but it's stronger than a regular bullet vibe.) Lovehoney does have sales regularly, so if you're interested, check with them occasionally, or get on their mailing list.
https://www.lovehoney.com/sex-toys/...silicone-butt-plug-5.5-inch/a30702g52007.html
https://www.lovehoney.com/sex-toys/...echargeable-bullet-vibrator/a30320g51082.html
It's hard to find large toys with all the features you want. Medium and small toy users have a much better selection available.
You could try using the goliath (I don't actually know what that toy is) with a Magic Wand pressed against it, to transmit vibrations. The firmer the toy, the better this will work. A metal plug would work really well here.
You could also try asking Lovehoney to start making XL and XXL size plugs, just to let them know there's a market for larger toys.
Last edited: Apr 30, 2021