A retention assembly for a hollow tubular decorating roller comprising: a fixed mount member securable in use to a roller frame and including a first primary support formation and a first retention formation extending radially beyond the first primary support formation; and a separable mount member selectively couplable with the fixed mount member, the separable mount member including a second primary support formation and a second retention formation extending radially beyond the second primary support formation, the first and second primary support formations (16, 20) being received, in use, by a respective end (204a, 204b) of a hollow tubular decorating roller, the first and second retention formations (18, 22) cooperating with one another while the separable mount member is coupled with the fixed mount member to, in use, retain a hollow tubular decorating roller therebetween, wherein each of the first and second primary support formations (16, 20) includes a respective mutually engageable attachment formation (48, 50), the mutually engageable attachment formations (48, 50) being selectively couplable with one another, wherein one of the mutually engageable attachment formations (48, 50) receives the other one of the mutually engageable attachment formations (48, 50), the retention assembly being characterised in that the one of the mutually engageable attachment formations (48, 50) includes first and second slots (52a, 52b) formed on an outer face of the one of the mutually engageable attachment formations (48, 50), and further including first and second stop portions (56a, 56b) formed within the one of the mutually engageable attachment formations (48, 50), and in that the other one of the mutually engageable attachment formations (48, 50) includes first and second resiliently deformable attachment legs (60a, 60b), wherein the first and second attachment legs (60a, 60b) are configured to deform, in use, towards one another to selectively permit entry and exit of the legs (60a, 60b) into and out of a respective slot (52a, 52b), and wherein a barb portion (62a, 62b) of each first and second attachment leg (60a, 60b) is configured to locate past and abut against a corresponding stop portion (56a, 56b) of the one of the mutually engageable attachment formations (48, 50) to resist separation of the mutually engageable attachment formations (48, 50). a fixed mount member securable in use to a roller frame and including a first primary support formation and a first retention formation extending radially beyond the first primary support formation; and a separable mount member selectively couplable with the fixed mount member, the separable mount member including a second primary support formation and a second retention formation extending radially beyond the second primary support formation, the first and second primary support formations (16, 20) being received, in use, by a respective end (204a, 204b) of a hollow tubular decorating roller, the first and second retention formations (18, 22) cooperating with one another while the separable mount member is coupled with the fixed mount member to, in use, retain a hollow tubular decorating roller therebetween, wherein each of the first and second primary support formations (16, 20) includes a respective mutually engageable attachment formation (48, 50), the mutually engageable attachment formations (48, 50) being selectively couplable with one another, wherein one of the mutually engageable attachment formations (48, 50) receives the other one of the mutually engageable attachment formations (48, 50), the retention assembly being characterised in that the one of the mutually engageable attachment formations (48, 50) includes first and second slots (52a, 52b) formed on an outer face of the one of the mutually engageable attachment formations (48, 50), and further including first and second stop portions (56a, 56b) formed within the one of the mutually engageable attachment formations (48, 50), and in that the other one of the mutually engageable attachment formations (48, 50) includes first and second resiliently deformable attachment legs (60a, 60b), wherein the first and second attachment legs (60a, 60b) are configured to deform, in use, towards one another to selectively permit entry and exit of the legs (60a, 60b) into and out of a respective slot (52a, 52b), and wherein a barb portion (62a, 62b) of each first and second attachment leg (60a, 60b) is configured to locate past and abut against a corresponding stop portion (56a, 56b) of the one of the mutually engageable attachment formations (48, 50) to resist separation of the mutually engageable attachment formations (48, 50).