Bob's Poster is an inexpensive item that can be bought from the cheap items section in Nook's Cranny. You can also find it inside the balloons.
You can't craft Bob's Poster but you can buy it from the sellers below.
Source notes: In the Special Items section in Nook Shopping, after inviting the villager to Photopia (either through amiibo, or if the villager lives in your town)
|Craftable: No||Customizable: n/a||Catalog: Yes|
|Source: Nook's Shopping - Posters||Size: 1x1||HHA Series:|