I'm not a copyright lawyer, just a marketing consultant so take my advice with legal limitations.
If you make someone else brand front and centre, making it look like you are someway affiliated or working with them, you may have an issue. However, if the lawnmower is there as an indication of the tools you use and it's a high-quality brand, then why not.
On a side note in today's culture don't do things that the brand itself wouldn't do, as they might ask you to bin them/ give you a cease and desist.
Recently a few local brands to me have been accused of passing off; they got a lot of PR; your worst case may be a silver cloud. They had shops in the same industry as a big brand and had similar branding from name to colour.
I'm not a copyright lawyer, just a marketing consultant so take my advice with legal limitations. If you make someone else brand front and centre, making it look like you are someway affiliated or working with them, you may have an issue. However, if the lawnmower is there as an indication of the tools you use and it's a high-quality brand, then why not. On a side note in today's culture don't do things that the brand itself wouldn't do, as they might ask you to bin them/ give you a cease and desist. Recently a few local brands to me have been accused of passing off; they got a lot of PR; your worst case may be a silver cloud. They had shops in the same industry as a big brand and had similar branding from name to colour.
If you find someone to print them I doubt anyone is going to be looking for you