I am, perhaps, the only person who ever actually reads the terms and conditions of low-cost air carriers when making a booking. Occasionally it's worth it. I note that one airline says:

We are not liable for the replacement cost of designer baggage which in itself is valuable and inappropriate to be carried by a low cost airline

Amusingly, designer baggage is defined as

baggage which bears a logo of a so-called designer manufacturer and is sold at inflated prices.

[rab]They sound kind of bitter, don't they?

(Darren) Your example doesn't look grammatical to me and I wonder who put it together. Da means good, but ardderchog means wonderful, excellent etc and you wouldn't use both together. I suspect it should read mae bronnau ardderchog genni hi, literally, "there is (are) breasts wonderful with her". There's no verb "to have" in Welsh. The word genni is a conjugated part of gan, "with", and its ending means you can omit the pronoun it refers to, hi, in this case, and most people would, certainly in conversation.

I wonder what would happen if you checked in luggage in black bin liners - which are presumably appropriate for travel on a low cost carrier....

(rab, pen) It's a bit like a notice on the door of a pub, saying "No suits, ties or dresses - this is a rough house". An amazing admission.