You can use labrets in them but not navel jewelry. The curved jewelry doesn't really look right and its an uneven weight. If the threading and gauge match, you can take a ball or dangle from the navel jewelry and put it on the end of the labret bar.
No
Only put belly bars In.
You can find good belly bars at specialized body jewelry shops, both online and in physical stores. Popular online retailers like Etsy, Amazon, and dedicated body jewelry websites often offer a wide variety of styles and materials. Additionally, local tattoo and piercing studios typically carry belly bars and can provide personalized recommendations. Always ensure the jewelry is made from safe materials, such as surgical stainless steel or titanium, to avoid irritation.
Titanium banana bells are all the same regardless of where they are placed, top of the navel or bottom of the navel. All professional body piercing studios will carry a selection of them for sale.
Belly bars are offered by many websites that sell jewelry. In UK a site called Belly Bars would be a good place to try, as would H.Samuel and River Island.
claires acceseries, piercing shop, tattoo parlors etc
maybe from 15 but i got mine done on the 31st December 2012 when i was the age of 14, despite being 14 though i was 15 in January 20th 2013 so it was not bad but it does hurt a bit but my belly button piercing is infected and has been since i got it pierced and it kills to take the belly bar out and put it back in. however the belly bars you can get some cheap but just a few other than that they are like 12 or 10/ even more pounds so yeah not very cheap
you could probably find them at Claires accsessories. x]
Yes, as long as the gauge is correct for the tongue piercing - for example : nipple bar is 14 gauge - usual tongue piercing jewellery is 14 gauge and the length of the nipple bar is the correct length for the wearers tongue (this varies from person to person). Basically - if it fits - wear it!
staple the gold bars in his belly if that's where your stuck and don't forget to do his nipples to unlock a bonus stage
You could get two individual clear plugs/bars. It'll be tough to find a clear bar long enough for an industrial.
How long a piercing takes to close up depends on the gauge of the piercing but mostly it depends on the individual. All I can give you is anecdotal evidence; I removed my 14g lip piercing which was 18 months old and was unable to re-open the hole without re-piercing just two days later. If you want to keep the piercing open but need it to go unnoticed (say, for a job interview or a particular event) consider using a piercing retainer, these are clear plastic bars which are almost invisible when worn.