Ice Cube Trays (Putnoe MK41)

Hi, I'd really appreciate some ice cube trays so I can freeze things like eggs, small portions of sauces etc
The last fridge-freezer I bought (about 5-7 yrs ago now) didn't come with any and I didn't think to keep the ones from the old one...
Someone suggested I can freeze eggs in them for later use in e.g. sauces, cakes or as scrambled eggs which sounds like a brilliant idea to me and would be great for me to help make my very limited budget stretch further and avoid food waste...
I don't have a car and am reliant on public transport to get about as well as having some mobility issues, so long-distance walking is slow and painful, but I will do my best to pick up from areas close-ish to me...
Thank you in advance xxx