If the grandparents enjoy getting physical mail and like hard copy photos to have around the house, then https://nanagram.co is a good option[1] You just text in your photos and they printed and shipped once a month. We use it for my mom to send baby photos and she loves it. [1] Full disclosure: my older brother built this service, but I don’t have an affiliation other than being a proud brother and happy customer. - Source: Hacker News / about 1 year ago

Nanagram- hard copies of photos sent on a monthly basis. Great for the scrapbooker family member. Source: about 1 year ago

I'm not affiliated, but I have been using Nanagram for the last couple of years to send prints to my Mom. Source: about 2 years ago

That is adorable. You know what she'd love? NanaGram. Send her back 3 photos of you for free on our home page. Source: over 2 years ago

4. Grandparent gets envelope of printed photos just like the ones filling their old albums on the shelves It really is that easy. It’s affordable. And the founder is very responsive to any support inquiries. It was a service I always wanted to build myself but never had the time. I’m very grateful for it. [0] - https://nanagram.co/. - Source: Hacker News / about 3 years ago

Looks like she ordered stickers from stickermule.com (Can't believe she didn't use the holographic ones). Source: about 1 year ago

You can use stickermule.com and use the redraw feature on their site it is 19$ and this creates a SVG image and a png they send to u in maybe 2 hours that you can then use more easily. This has been super helpful for lots of things I do. Source: about 1 year ago

Thanks man! Stickerapp.com and stickermule.com are my go-to's. Source: about 1 year ago

I'll send you the file. You can get it printed on any t-shirt site. I happen to use stickermule.com since I use them for other work-related stuff. Think it's a bit smaller than it should be and not very soft. Get what you pay for, I guess. Source: over 1 year ago

Stickermule.com makes very good flexible prints, and their fits are phenomenal. Source: almost 2 years ago