Help me phrase this invitation

[Octoberfishing]

DD (nearly 7) is about to have a birthday party where she's inviting the whole class. In the nicest possible way, I cannot possibly imagine fitting 30 x gifts in our already-bulging-at-the-seams-with-toys house.

Last year she had 10 friends, and we still ended up regifting / donating a lot to charity, and it just seems so wasteful and environmentally unfriendly.

This year we'd like to say "no gifts please", but I know people do like to give something. We are considering saying "no gifts please, but if you would like to give £5, DD would love to donate some of her birthday money to charity, and choose one special gift for herself", but I don't know how to phrase this without sounding like a grabby CF or massively sanctimonious. (And yes, the birthday party is costing a lot more than £5 per head, in case I get accused of trying to make money...)

If it makes any difference, I'd be delighted to get an invitation like this, as we usually spend around £10, and it's always an arse ache buying and wrapping something. Last year we said "book tokens" to anyone who was kind enough to ask, but we use the library a lot and haven't even got through last year's tokens yet.

Advice welcomed!

Don't mention anything about charity - it's a touch sanctimonious and I've always found that when one parent in a class does this, other parents feel pressurised to do the same.
I've seen wording along the lines of " xxxxxxx is saving up for a present/treat so would appreciate a couple of pounds in a card but don't worry just hoping xxxxxxxxxxx can make the party.

Please don't say charity. If you wish to give money to charity do it quietly rather than asking other people to do it.

Either find something bigger she'd like and put on the invitations "she really wants to save up for X, if you would like to give a present then she'd be delighted with £2 towards it" or ask for something like "your child's favourite book" or "she likes craft things, please could she have something small that goes in her pencil case".

Why can’t she keep any money and spend it on herself

I don't think you can write anything. You could maybe say something to a couple of well placed parents who might spread the word.

I find parents often ask what to get. Wait and see if they ask, and if they do say 2 pounds towards X please.

Of course she could if she wanted but she has a favourite charity and sometimes donates some of her pocket money. She'd happily donate all of it, and we've had to talk to her in the past about keeping some for herself. I think it's an age / not properly understanding money thing as her older sibling wouldn't be quite so generous!

She doesn't have a special toy in mind for me to mention she's saving for, but point taken about not mentioning the charity as it sounds sanctimonious.

I think no gift parties are a brilliant idea, the pressure to find or afford a gift for every party is unnecessary and if a DC's parents can afford to host a party presumably they're perfectly capable of getting their DC sufficient gifts if they feel a need to do so and close friends and family will presumably also contribute gifts. If I was doing a ' no gift' party though I would consider then not giving out gift bags, just on the basis that I'd feel a bit odd asking for no more clutter essentially, and then giving it out myself. I'd just do a bit of birthday cake or sweets from the party.

I would just put something like " No gifts please, so-and so has everything they need and we'd just like to see you" or "No gifts please, we just want to celebrate with you". Neither would offend me in the slightest but I appreciate some people are more precious about these things.