Eggs???

Anyone have any idea what these horrible looking things are, please? 
Looks like eggs???
Appeared in last couple of days.
Have put a 10p and 5p to give an idea of size.
Thought about throwing them in pond for goldfish??
Whoops having trouble adding a photo!
Keeps saying too big even though I’ve edited it to make it much smaller

Email the photo to yourself and if you click n the image size box it generally gives you an option of file size and you can select a smaller image see below